CONFERENCE PAPERS
2020
Paper on Unimixing Mixed Agreements: Challenges and Solutions for Separating the EU and its Member States in Existing International Agreements, Conference The EU and its Member States' Joint Participation in International Agreements, The Global Studies Institute, University of Geneva, Geneva, Switzerland, 5 November 2020 (with Yuliya Kaspiarovich)
Paper on EU Competences in International Arms Control at the EU COST-ENTER public event and workshop on Contemporary Challenges in the Field of Non-Proliferation/ Arms Control Policy and EU Responses, International Institute for Peace, Vienna, Austria, 26-27 February 2020
2019
Paper on The Participation of Members and Non-Members in EU Foreign, Security and Defence Policy, conference Beyond EU ‘Membership’? Current Issues and Future Perspectives, Centre for European Research in Maastricht (CERiM), Maastricht, The Netherlands, 23-24 May 2019
Paper on Post-Brexit Participation of the UK in CFSP and CSDP, workshop on EU External Relations after Brexit: Implications under EU and International Law, University of Salamanca, Salamanca, Spain, 7-8 March 2019
Paper on The Regulation of Cybersecurity by the European Union, conference Cyber Attacks and Cyber Secuity at the International Level, Universidad Pablo de Olavide, Sevilla, Spain, 8-12 February 2019
Paper on Legality in EU Common Foreign and Security Policy: The Choice of the Appropriate Legal Basis, presented at the workshop Contemporary Challenges to EU Legality, European University Institute, Florence, 5 February 2019
2018
Paper on The Legal Function of the Nation-State in the Era of Globalisation and Technology: An Agenda for Research on the Resilience of the International Structure, presented at the workshop: Taking Stock of Global Constitutionalism – To what Extent did it Really Change International Law?, 23rd Annual Ius Commune Conference in Amsterdam, 29-30 November 2018
Paper on The Legal Function of the Nation-State in the Era of Globalisation and Technology: An Agenda for Research on the Resilience of the International Structure, presented at the panel The Role of the State in Times of Globalisation: Multidisciplinary Perspectives, Annual Conference of the Netherlands Institute of Government (NIG), Leiden University – Campus The Hague, Faculty of Governance and Global Affairs, The Hague, The Netherlands, 1-2 November 2018
Paper on General Principles in EU Common Foreign and Security Policy at the Workshop Constructing Legal Orders in Europe: The General Principles of EU Law, College Court of the University of Leicester, Leicester, UK, 29-30 June 2018
Paper on ‘Soft’ International Agreements in EU External Relations: Pragmatism over Principles?, presented at the ECPR SGEU Conference, Panel Hard and Soft Law in the European Union, Paris 13-15 June 2018
Paper on The Engagement of the EU with Other International Institutions, presented at the European Union in International Affairs conference (#EUIA18), Brussels, Belgium, 18 May 2018
Key-note address on Defining Institutional Law-Making at the conference International Organizations as Law-Makers, University of Salerno, Salerno, Italy, 30 April 2018
Presentation on The Division of International Responsibility between the EU and its Member States in External Action at the Odysseus Network’s 3rd Annual Conference, Conflict and Compromises between Law and Politics in EU Migration and Asylum Policies, Brussels, Belgium, 1 February 2018
Presentation on Law, Legitimacy and the EU, roundtable at the PLATO PhD course, Berlin Graduate School for Transnational Studies, Berlin, Germany, 16 January 2018
2017
Presentation on Public Authority in Multilevel Technocratic Regulation, Netherlands Institute for Law and Governance (NILG) Conference: Law & Governance Taking a Technocratic Turn? The Future of Law & Technocratic Regulation by Standardisation, Certification, Accreditation & Normalisation (‘SCAN’), Amsterdam, The Netherlands, 1 December 2017
Paper Consequences of Brexit for International Agreements concluded by the EU and its Member States, presented at the 60th anniversary conference of the Europa Institute, Brexit and the Future of the European Union, University of Leiden, 31 November 2017
Paper A Network Design Perspective on Resilient Crisis Response: Lessons from the Case of Flight MH17, Public Management Research Conference 2017, 8-10 June 2017, American University Washington, D.C. (R. Torenvlied, M. Moorkamp., W. Broekema, R.A. Wessel)
Paper Legal Consequences of ‘Brexit’ for the Role of the EU and the UK in Global Affairs, Fifteenth Biennial Conference of the European Union Studies Association (EUSA), Miami, United States, 4-6 May 2017
Paper Consequences of the Relationship between International and European Law for the Study of these Disciplines, conference The Interface between EU and International Law, College of Europe, Bruges, Belgium, 28 April 2017
Presentation on The EU Solution to Deal with the Dutch Referendum Result on the EU-Ukraine Association Agreement at the Workshop EU Trade Law and Policy: Current Developments and Challenges, 10 April 2017, Università LUISS Guido Carli, Rome, Italy
Presentation on Common, Foreign, Security and Defence Policy at the Universidad Internacional de Andalucía, Sevilla, Spain, 23 March 2017
Presentation on The Immunity of International Organisations: Stuck Between Different International Obligations?, Seminar on the Report of the Advisory Committee on Issues of Public International Law (CAVV): The Responsibility of International Organisations, Ministry for Foreign Affairs, 16 February 2017, The Hague, The Netherlands
Presentation on The European External Action Service at the seminar European Union Diplomacy: From Dream to Reality, Faculté de Droit, d'Économie et de Finance, 9 February 2017, Université du Luxembourg, Luxembourg
Presentation on The Legal Procedure to Leave the European Union, Parliamentary Hearing on Brexit, 1 February 2017, Chambers of Parliament, The Hague
2016
Legal Competences of the European Union in Relation to the Non-Proliferation of Weapons of Mass Destruction, paper presentation at the workshop ‘The Changing Landscape of EU Nuclear Non-Proliferation’, Uppsala University, Uppsala, Sweden, 17 November 2016
The EU External Relations Aspects of Brexit, presentation at the Annual meeting Nederlandse Vereniging voor Europees Recht (NVER), Utrecht, The Netherlands, 11 November 2016
Upscaling the ‘Territory’ of the European Union: From Regional to Global Governance and Back, paper presentation at the symposium Scaling Global Governance, Institute of Advanced Studies, Durham University, Durham, UK, 9-10 November 2016
The Effect of Trump or Clinton on the EU and the World, contribution to the discussion panel at the Studium Generale event ‘The Rethoric of Clinton and Trump, University of Twente, Enschede, The Netherlands, 8 November 2016
EU Law & Technology, panel chair at the ACELG Annual Conference, The Rule of Law in the Technological Age: Challenges and Opportunities for the EU, University of Amsterdam, The Netherlands, 4 November 2016
Experiences and Challenges in Editing an International Law Journal: The International Organizations Law Review, presentation at the Conference on Global Communication of Chinese Theory and Practice of International Law, Wuhan University Institute of International Law, Wuhan, China, 28-30 October 2016:
Multilevel Learning: Sharing Governance Experiences between Global, Regional, National and Sub-National Public Authorities, panel chair, Lustrum Conference Public Administration, University of Twente, Enschede, The Netherlands, 21 October 2016
Lex Imperfecta: Law and Integration in European Foreign and Security Policy, Jean Monnet Seminar on EU External Action, presentation, University of Salamanca, Salamanca, Spain, 17 October 2016
CFSP in the EU’s New Global Strategy, Expert Meeting Implementing the EU’s New Global Strategy on Foreign and Security Policy: An Appraisal & Looking Ahead, The Hague Institute for Global Justice, The Hague, 30 September 2016
The Separate Status of International Organizations, presentation at the Seminar Judicial Decisions on the Law of International Organizations, TMC Asser Institute, The Hague, The Netherlands, 14 September 2016
Flipping the Question: The Reception of EU Law in the International Legal Order, paper presented at the 12th Annual Conference of the European Society of International Law, Riga, Latvia, 7 September 2016
From Participation to Membership within the OSCE, paper presented at the Conference Strengthening the Legal Framework of the OSCE, Harnack-Haus, Max Planck Society, Berlin, Germany, 13 July 2016
EU International Representation, Keynote delivered at the 3 rd CLEER Summer School on EU External Relations Law, Brussels, Belgium, 27 June 2016
EU External Relations Law and Mixed Agreements, presentation at the Academy of European Law, Trier, Germany, 24 June 2016
A Political-Legal Analysis of EU and Member State External Action and Legal Aspects of Parliamentary Control over European Foreign Policy, paper presented at The European Union in International Affairs V conference, Brussels, Belgium, 11 May 2016
Legal Aspects of Parliamentary Control over European Foreign Policy, paper presented at The European Union in International Affairs V conference, Brussels, Belgium, 13 May 2016
Judicial Control of the European Union’s Foreign and Security Policy, paper presented at the EU CFSP/CSDP Workshop, City University London, London, UK, 28-29 April 2016
Constitutional Aspects of the EU’s Global Actorness: Increased Exclusivity in Trade and Investment and the Role of the European Parliament, paper presented at the RELEX Working Group Workshop Series The EU’s approach to trade and investment agreements – What content, motives and normative basis?, Session ‘The New Powers of the European Parliament and Article 21 TEU – A recipe for change?’, Villa Schifanoia, European University Institute, Florence, Italy, 12 April 2016
Common, Foreign and Security Policy, presentation at the Universidad Internacional de Andalucía, Sevilla, Spain, 31 March 2016
2015
The Reception of EU Law in the International Legal Order, paper presented at the 20 th Ius Commune Congress, Leuven, Belgium, 26-27 November 2015
The Law of International Organizations, presentation at the Faculty of Law, KU Leuven, Leuven, Belgium, 26 November 2015
The Implementation of ‘TOM’: Lessons Learned, Conference Towards a new educational vision for the EUR, Keynote speech at the Erasmus University Rotterdam, The Netherlands, 24 November 2015
Developing a Research Agenda for EU Performance in International Institutions, Keynote speech at the kick-off of the IES Autumn Lecture Series 2015, Institute for European Studies, Brussels, Belgium, 20 October 2015
Reconsidering the Theoretical Foundations of the Autonomy of EU Law, Keynote speech at the conference The Autonomy of EU Law from the Perspective of International Judicial Bodies: A Mixed Blessing?, Hungarian Academy of Sciences Centre of Social Sciences, Budapest, Hungary, 1 October 2015
Dialogue Between Judges: The Court of Justice of the European Union and Other International Courts, panel chair and respondent, Jean Monnet Workshop, Geneva, Switzerland, 23-26 September 2015
Between Pragmatism and Predictability: Temporariness in International Law, paper presented at the International Society of Public Law (ICON·S) Conference on Public Law in an Uncertain World, New York University, New York, USA, 1-3 July 2015
The EU’s Common Foreign and Security Policy, presentation at the Academy of European Law, Trier, Germany, 26 June 2015
Flipping the Question: The Reception of European Law in the International Legal Order, paper presented at the Conference Constructive Links or Dangerous Liaisons? The Case of Public International Law and European Union Law, Queen Mary, University of London, London, UK, 25-26 June 2015
European Institutions, presentation at the Master of Public Management, Scotland House, Brussels, Belgium, 23 June 2015
EU External Representation Post-Lisbon, Keynote at the 1 st CLEER Graduate workshop on the Law of EU External Relations, Brussels, Belgium, 22 June 2015
Keynote speech ‘The State of Affairs in EU External Relations Law’, Joint RENFORCE-CLEER Workshop on The External Effects of EU Law, Utrecht, The Netherlands, 13 May 2015
Chair and discussant at the Conference Powers under External Pressure, Amsterdam Centre for European Law and Governance, Amsterdam, The Netherlands, 10 April 2015
Discussant at the Panel Risk Regulation on Emerging Technologies at the UCALL Congres 'Law in the Risk Society’, Utrecht, The Netherlands, 10 April 2015
The EU’s Common Foreign, Security and Defence Policy, presentation at the Universidad Internacional de Andalucía, Sevilla, Spain, 19-21 March 2015
Participation in CEPS Ideas Lab ‘More or Less Europe?’, Centre for European Policy Studies, Brussels, Belgium, 26-27 February 2015
The European Union and International Dispute Settlement: Mapping Principles and Conditions, paper presented (with C. Hillion) at the workshop The EU and International Dispute Settlement, organised by the ESIL Interest Group on The EU as a Global Actor, the Centre for the Law of EU External Relations (CLEER) and the European University Institute, EUI, Firenze, Italy, 19-20 February 2015
2014
The European Union’s Legal Agenda for Peace: From Internal to External Security and Back?, paper presented at the conference Past, Present and Future of Peace Research, University of Groningen, The Netherlands, 11-12 December 2014
Smart Regulation for Sub-National Authorities: Towards Lower Administrative and Compliance Costs of EU Legislation and Regulation, paper (with N.S. Groenendijk and E.E. de Lange) presented at the Annual Work Conference, Netherlands Institute for Government, University of Delft, The Netherlands, 27 November 2014
The EU as a Portal, presentation at the seminar European Union External Action and International Law, Expertisecentrum Europees Recht (ECER), Ministry for Foreign Affairs, The Hague, 6 November 2014
Constitutional Consequences of the EU’s Foreign Policy: Are CFSP Norms as Soft as They Seem?, paper presented at the Workshop Democratic Constitutionalism in Europe, ARENA, Oslo, Norway, 5 November 2014
The EU as a Global Actor: Institutional Aspects Relating to Trade and Investment, paper presented at the conference The European Union as an Actor in International Trade and Investment, Oslo, Norway, 31 October 2014
Peer Review in International Law, presentation at the Tilburg Rule of Law Workshop Bridging idealism and realism in constitutionalism and Rule of Law, Tilburg University, The Netherlands, 3 October 2014
Indicators and Informal International Law, presentation at the conference Indicators: Law, Gaps and Democracy, Universidad de Los Andes, Bogotá, Colombia, 1-3 August 2014
The EU as a Global Actor, presentation at the Universidad de Los Andes, Bogotá, Colombia, 2 August 2014
The Legal Effects of EU Agreements: Maximalist Treaty Enforcement and
Judicial Avoidance Techniques. Review of the book by Mario Mendez (Oxford: Oxford University Press, 2013), Common Market Law Review, 2014, No. 5, pp. 1548-1549
EU External Relations Law, Sanctions and Human Rights, presentation at the workshop European Constitutional Law, Academy of European Law, Trier, Germany, 27 June 2014
The Appropriate Level of Enforcement in Multilevel Regulation: Mapping Issues in Avoidance of Regulatory Overstretch, paper presented (with co-author Michiel A. Heldeweg) at the ECPR Standing Group on Regulatory Governance Conference, Barcelona, 25-27 June, 2014
Transnational Arrangements in the Governance of Emerging Technologies: The Case of Nanotechnology, paper presented (with co-author Evisa Kica) at the ECPR Standing Group on Regulatory Governance Conference, Barcelona, 25-27 June, 2014
The EU as a Global Actor: Introducing Key Actors and Instruments, presentation at the 2nd CLEER Summer School on The Law of EU External Relations, Brussels, 23 June 2014
Informal International Lawmaking, presentation at the OECD Academic pre- conference on Transparency and Stakeholder Engagement in Regulatory Policy, Peace Palace, The Hague, The Netherlands, 16 June 2014
Leadership at a university, presentation at the Leadership Development Programme of the European Consortium of Innovative Universities (ECIU), Brussels, Belgium, 20 May 2014
Decisions of International Institutions: Explaining the Informality Turn in International Institutional Law, paper presented at the conference The Political Economy of International Law Department of Legal Sciences, Faculty of Law, La Sapienza University, Rome, May 16-17, 2014
The EU as a Global Diplomatic Actor, Invited speech at the conference The EEAS: Building a New Common Diplomacy?, University of Economics / Ministry of Foreign Affairs of the Czech Republic, Czernin Palace, Prague, Czech Republic, 7 April 2014
The European Union‘s Common, Foreign, Security and Defence Policy, invited presentation, Universidad Internacional de Andalucía, Sevilla, Spain, 27 March 2014
New Diplomatic Activities of the European Union and the Limits of International Law, Invited speech, Lecture Series on the EU as International Global Actor (flyer), University of Luxembourg, 20 March 2014
Art. 5 of the EEAS Decision, Invited presentation at the event EEAS 2.0: Launch of Recommendations, Centre for European Policy Studies (CEPS), Brussels, Belgium, 6 February 2014
The EU as a Global Actor, invited presentation at Sciences Po Grenoble, Grenoble, France, 24 January 2014
The Legal Dimensions of EU Performance, Conference, Invited speech, The Performance of the European Union in International Institutions (EUPERFORM project), Brussels, Belgium, 16 January 2014.
2013
The Interface Between the EU and International Law after the Lisbon Treaty, Invited speech at the Swedish Institute for European Policy Studies (Sieps) and the Swedish Ministry for Foreign Affairs on, Stockholm, Sweden, 12 December 2013
Human Security as a Tool for a Comprehensive Approach to Human Rights and Security Linkages in EU Foreign Policy, Conference Director and Organizer, Centre for the Law of EU External Relations (CLEER), The Hague, 6 December 2013
Decisions of International Organizations in EU Law, paper presentation, conference The European Union’s External Action in Times of Crises, Universidad de Granada, Spain, 27-28 November 2013
European Law and the EEAS: Of Complex Competences and Constitutional Consequences (co-authored with Geert De Baere), conference The EU’s Diplomatic System: post-Westphalia and the European External Action Service, paper presentation, Europe House, London, UK, 19 November 2013
New Diplomatic Activities of the European Union and the Limits of International Law, paper presentation, seminar International Law Association, University of Sheffield, UK, 7 November 2013
De wereld anno 2050: (h)eerlijke nieuwe wereld?, debate moderator, University of Twente, Studium Generale, 19 October 2013
EU External Relations Law and International Agreements, presentation at the Academy of European Law, Trier, Germany, 27 June 2013
Everything You Wanted To Know About the EU But Where Afraid To Ask, presentation at the Master of Public Management, Faculty of Law, University of Copenhagen, 25 June 2013
The EU as a Global Actor: Actors and Instruments, presentation at the at the 1 st CLEER Summer School on The Law of EU External Relations, Brussels, 24 June 2013
The International immunity of the European Union, presentation at the international conference The Immunity of International Organizations, University of Leiden, 10 June 2013
Union Delegations, presentation at the workshop EEAS 2.0, European University Institute, Florence, Italy, 21-22 March 2013
The EU in the World, presentation at the Universidad Internacional de Andalucía, Sevilla, Spain, 14-15 March 2013
2012
EU Diplomacy, competence and International Law: legal aspects of the new EU Diplomacy, paper presented at the Conference The European External Action Service: Changing the Nature of Diplomacy or Old Wine in New Bottles?, Europe House organised by the London School of Economics, and the Wyndham Place Charlemagne Trust, London, 23 November 2012
EU External Relations Law, paper presentation at the University of Copenhagen, 16 November 2012
EU Diplomacy and International Law, paper presented at the Cambridge-Durham European Law Workshop on External Relations Law of the European Union, Centre for European Legal Studies, University of Cambridge, 26 October 2012
Redrafting the 2010 EEAS Decision, paper presented at the EEAS 2.0 Workshop, Stockholm, Sieps, 4-5 October 2012
The Source of Authority in Informal International Lawmaking, paper presented at the international conference on Postnational Rulemaking between Authority and Autonomy, University of Amsterdam. 21 September 2012
The EEAS’ Diplomatic Dreams and the Reality of European and International Law, paper presentation at the UACES Conference Exchanging Ideas on Europe 2012: Old Borders – New Frontiers, Passau, Germany, 5 September 2012
Legal Aspects of EU External Policy, presentation at the Europäische Rechtsakademie, Trier, Germany, 21 June 2012
The EU’s Planned Diplomatic Activities: External Demands for the Internal Set-Up, presentation at the Workshop Outside-In: Tracing the Imprint of the European Union’s External Actions on Its Constitutional Landscape, University of Amsterdam, 15 June 2012
Human Rights and EU Crisis Management Operations: A Duty to Respect and to Protect?, Conference organisation, Centre for the Law of EU External Relations (CLEER), The Hague, 26 May 2012
Legal Effects of International Law in the EU Legal Order, presentation, Ministry for Foreign Affairs, Warsaw, Poland, 30 March 2012
The EU in the World, presentation at the Universidad Internacional de Andalucía, Sevilla, Spain, 15-16 March 2012
Regulating technological innovation through informal international law, paper presented at the STePS Research Days, University of Twente, 14 March 2012
EU Common Foreign, Security and Defence Policy: New Developments, presentation at the Institute Clingendael, The Hague, 8 March 2012
The EEAS’ Diplomatic Dreams and the Reality of International Law, paper presented at the Workshop EU External Representation and the Reform of International Contexts: Practices after Lisbon, Lisboan Erasmus Academic Network, Clingendael, The Hague, 21-22 February 2012
The Place of the European Legal Order within International Law, presentation at the Conference: Tension between Universal and Regional Unification of Private Law; Conflict between EU Law and Maritime & Transport Law Conventions, Erasmus University Rotterdam, 16-17 February 2012
2011
Annual Ius Commune Conference, Workshop Transnational Networks – National, European and International Perspectives, conference organiser/panel chair, Utrecht University, 24-25 November 2011
The EU’s Contribution to Global Security: Legal Competences and Practices in the area of CSDP, paper presented at the conference The Legal Dimension of Global Governance: What Role for the EU?, University of Copenhagen, 13-14 October 2011
The Principle of Sincere Cooperation: From Shared to Exclusive Competences?, presentation at the 1 st UAM International Conference on European Union Law. Recent trends in the case law of the Court of Justice of the European Union (2008-2011), School of Law, Autónoma University of Madrid, 14-15 July 2011
Common Foreign, Security and Defence Policy and the Treat-Making Capacity of the EU, presentation at the Europäische Rechtsakademie, Trier, 8 July 2011
Informal International Law-Making as Law of the Future?, presentation at the 4 th HiiL Law of the Future Conference, Peace Palace, The Hague, 22-23 June 2011
The Impact of the Lisbon Treaty on the EU’s Approach Towards International Norms, presentation at the workshop The EU External Relations and the Treaty of Lisbon, Swedish Institute for European Policy Studies (SIEPS), Stockholm, Sweden, 20-21 June 2011
Division of International Responsibility between the EU and its Member States in the Area of Foreign, Security and Defence Policy, paper presented at the Bristol EU-International Law Forum 2011 on ‘International Responsibility’, Bristol, UK, 12-13 May 2011
The Exercise of Public Authority through Informal International Law-Making, paper presented at the conference Global Governance as Public Authority: Structures, Contestation, and Normative Change, Hertie School of Governance, Berlin, 15-16 April 2011 (with J. Pauwelyn and J. Wouters)
Regulating Technological Innovation through Informal International Law: An Expression of International Public Authority?, paper presented at the workshop Regulating Technological Innovation: Legal and Economic Regulation of Technological Innovation, University of Twente, 14 April 2011.
The Legal Nature of Informal International Law: A Legal Theoretical Exercise, paper presented at the conference Informal International Law-Making, NIAS, Wassenaar, The Netherlands, 17-18 March 2011
2010
The Relationship between International and EU Law, speech at the Department for Political Science and European Affairs, University of Cologne, 16 December 2010
Informal International Law-Making, Workshop Constitutional Processes in the Global legal Order, Ius Commune Conference, Panel Chair, Leuven, 26 November 2010
Towards World Legislation? The Exercise of Public Authority by International Institutions, paper presented at the Conference World Legislation: Perspectives from international law, legal theory and political philosophy, Vrije Universiteit Amsterdam, 12 November 2010
The Influence of International Organizations on the European Union: The EU as an Autonomous Legal Order, presentation at the CLEER Conference The Influence of International Organizations on the European Union, The Hague, 5 November 2010
CLEER Conference The Influence of International Organizations on the European Union, The Hague, Conference Director, 5 November 2010
Regulation by Standardisation, Conference Tentative Governance in Emerging Science and Technology, Panel Chair, 28-29 October 2010.
New Challenges for Academic Research in the Legal Study of EU External Relations, EXACT Initial Conference, 20-21 October 2010, Presentation, University of Cologne
Innovative regulatory governance of nanotechnologies, Conference Governing Responsible Nanomedical Innovation, Panel Chair, University of Twente, 9-10 September 2010
Implications of the Lisbon Treaty on External Action and Representation of Member States, Panel Chair, CLEER Workshop External Action and Representation of the European Union: Implementing the Lisbon Treaty, Brussels, 9 July 2010
The Legal Form and Status of Informal International Public Policy Making Bodies: Transgovernmental Regulatory Networks and International Agencies, paper presented at the workshop Informal International Public Policy Making: Mapping the Action and Testing Concepts of Accountablity and Effectiveness, The Graduate Institute, Geneva, Switzerland, 24-25 June 2010
The Legal Framework for the Participation of the European Union in Other International Organizations, paper presented at the conference The European Union in International Affairs, Brussels, 22-24 April 2010
De opkomst van internationale wet- en regelgeving: naar een andere verhouding tussen internationaal en nationaal recht?, paper presented at the Ministry of Justice, Kenniskamer Internationalisering, veiligheid en recht, The Hague, 20 April 2010
The Rights and Duties of the Member States in the Common Foreign and Security Policy and the Decision-Making Process, paper presented at the Workshop The Union’s external action and the common foreign and security policy after The Treaty of Lisbon, Faculty of Law, LUISS University, Rome, 18-19th March 2010
International Responsibility of the EU and its Member States in the area of Foreign, Security and Defence Policy since the Treaty of Lisbon, paper prepared for the workshop The International Responsibility of the European Union, European University Institute, Florence, Italy, 5 March 2010
The European Union and Greece, interview RTV Oost, 15 February 2010
Common Foreign, Security and Defence Policy of the EU after the Treaty of Lisbon, presentation at the Universidad Internacional de Andalucía, Sevilla, Spain, 19 January 2010
2009
De aangesproken lidstaat. De internationale aansprakelijkheid en verantwoordelijkheid van de staat als lid van een internationale organisatie, paper (preadvies) presented at the Staatsrechtconferentie, Utrecht, 11 December 2009 (with I.F. Dekker)
European Organization of Telecom Regulators and the Impact on the Pace of Telecom Innovations: Is EU Modesty Hampering Innovation in Telecom? Think Global, Act Local…, paper presented at the Second Annual Conference on Competition and Regulation in Network Industries, Centre for European Policy Studies, Brussels, 20 November 2009 (with L.C.P. Broos and M.A. Heldeweg)
Reconsidering the Relationship between International and EU Law: The Inadequacy of Monist and Dualist Approaches?, paper presented at the conference ‘The EU in the World: External Relations Law for the 21 st Century’, T.M.C. Asser Instituut, The Hague, 2 October 2009
Wat maakt een land tot land?, presentation at Studium Generale, Universiy of Twente, 29 October 2009
European Foreign, Security and Defence Policy, presentation Netherlands Defence College, The Hague, 23 September 2009
EU External Relations Law, presentation Diplomatic Course, University of Leiden, 17 September 2009
Het belang van Europa voor decentrale overheden, presentation for the Regio Twente, Nijverdal, 16 September 2009
EU buitenlands beleid, presentation Wetenschappelijke Raad voor het Regeringsbeleid (WRR), 22 juni 2009
EU External Relations and Defence Policy, presentation Europaïsche Rechtsakademie, Trier, 19 June 2009
Reconsidering the Relationship between International and EU Law: The Inadequacy of Monist and Dualist Approaches?, paper presented at the conference ‘International Law as Law of the EU’, University of Rome ‘La Sapienza’, 22-23 May 2009
Europees recht, presentatie Ministerie van Buitenlandse Zaken / Universiteit Leiden, 11 May 2009
The European Union and Crisis Management: Will the Lisbon Treaty Make the EU More Effective?, paper presented at the international conference The European Union and Global Emergencies, Durham European Law Institute, 8-9 May 2009 (with S. Blockmans)
Local and regional governments in the age of Europeanisation and globalisation: legal and policy options in a multi-level polity, recommendations, presentation at the conference: Innovation for Good Local and Regional Governance, A European Challenge, Enschede 2-3 April 2009 (with M.A. Heldeweg and B.A.B.L. Dhinakaran)
Nieuwe ontwikkelingen in het buitenlands, veiligheids- en defensiebeleid van de EU, presentation at the Instituut Clingendael, The Hague, 5 March 2009
Military Missions of the European Union , Interview Radio Nederland Wereldomroep, 23 February 2009
Naar een bredere constitutionele verankering van het monisme: de invloed van ontwikkelingen in de internationale rechtsorde op de doorwerking naar Nederlands constitutioneel recht, presentation at the symposium ‘Globalisering en rechtsstatelijke waarborgen: de Grondwet als ankerpunt’, Ministerie voor Binnenlandse Zaken en Koninkrijksrelaties, 22 January 2009
European Union, Interview RTV Oost, 8 January 2009
2008
The Dutch Constitution in the Light of International Normative Processes, presentation at the Ius Commune conference, Workshop ‘Reconsidering Monism in the Light of International and European Normative Processes’, Amsterdam, 28 November 2008
Nieuwe ontwikkelingen in het buitenlands, veiligheids- en defensiebeleid van de EU, presentation at the Instituut Clingendael, The Hague, 26 November 2008
International Lawyers are from Venus, International Relations Scholars are from Mars, paper presented at the Annual NIG Conference, Panel ‘The Law of International Politics and the Politics of International Law’, Enschede, 20 November 2008
Consistency in EU External Relations, presentation at the European Commission, DG Relex, 19 September 2008
War in Georgia, Interview Radio 1, 25 August 2008
War in Georgia, Interview RTV Oost, 11 August 2008
The Common Foreign, Security and Defence Policy and the external representation of the Union, presentation at the Academy of European Law (ERA), Trier, 20 June 2008
Europese Unie: Instellingen en besluitvorming, Ministerie van Buitenlandse Zaken, 2 June 2008
The Constitutional Unity of the European Union, paper presented at the Jean Monnet Workshop on ‘Recent Development In EU External Relations: The Treaty of Lisbon and External Relations’, Maastricht, 5-6 June 2008
Birma, Interview RTV Oost, 19 May 2008
The European Union and Cross-Pillar Mixed Agreements, paper presented at the Conference ‘Mixed Agreements’, Leiden, 9-10 May 2008
The Impact of the Lisbon Treaty on the Legal Competences of the EU in International Affairs, paper presented at the ‘EU in International Affairs Conference’, Brussels, April 24‐26, 2008
Buitenlands, veiligheids- en defensiebeleid van de EU, presentation for the Nederlandse School voor Openbaar Bestuur, The Hague, 18 April 2008
Legal Implications of The Netherlands’ Membership of NATO, presentation at the Erik Castrén Institute, Helsinki, 14 April 2008
Decision-Making in the Common Foreign and Security Policy, presentation at the symposium ‘Understanding Decision-Making in the European Union: Principles, Procedures, Practice’, EIPA, Maastricht, 8 April 2008
From Rome to Lisbon: Ius Commune ‘Top Down’, presentation at the Ius Commune Research School, 7 April 2008
The Rule of Law and the Security Council: The New Procedures for the Legal Protection of Individuals in the Fight against Terrorism, paper presented at the CONNEX / Ius Commune Workshop ‘Accountability and the Rule of Law at International Level’, Amsterdam, 25 January 2008
Wat betekent Europa voor jou?, presentation at Twickel College Hengelo, 21 January 2008
The European Union: Trends and Developments, presentation in the Advanced Master Program in Management of Global Enterprises (AMPM), Enschede, 2 December 2008
Europees recht, presentation at the Provincie Overijssel, 29 October 2008
De Europese Unie, presentation at the Symposium Europaproof, Gemeente Hardenberg, 22 May 2008
2007
Externe betrekkingen: economisch en buitenlands beleid, ‘Expert-bijeenkomst Verdrag van Lissabon’, Utrecht, 14 December 2007
Towards normative convergence in the international legal order? The quest for aregulatory balance between market values and societal values, presentation at the Annual Ius Commune conference, Liège, 30 November 2007
Consistency in EU External Relations, presentation at the European Commission, DG Relex, 7 November 2007
De Europese Unie, presentation at Rijkswaterstaat, Utrecht, 29 October and 5 November 2007
EU Agreements with Third Countries, paper presented at the 37 th session of the T.M.C. Asser Institute Colloquium on European Law, ‘The European Union and International Crisis Management: Legal and Policy Aspects’, The Hague, 11-12 October, 2007
Multilevel Regulation, presentation at the CONNEX Conference ‘Lessons Learned on Meaning and Practice of Accountability in the EU Multi-Level Context’, Utrecht, 11-12 October 2007
The Common Foreign and Security Policy, presentation at the Academy of European Law (ERA), Trier, 21 June 2007
The G-8 meeting, Interview RTV Oost, 11 juni 2007
Recht van de Europese Unie en andere internationale organisaties, presentation for the Universiteitfonds Twente, May 2007
Wat brengt het nieuwe Europese Verdrag ons?, Twentse Courant Tubantia, 20 April 2007
Buitenlands, veiligheids- en defensiebeleid van de EU, presentation for the Nederlandse School voor Openbaar Bestuur, The Hague, April 2007
EU Enlargement and European Neighbourhood Policy, Conference ‘50 Years of European Integration’, Maastricht, 24-25 March 2007
Inter-pillar mixity – the pillar structure and conclusion of international agreements, presentation at the ERA seminar ‘The External Competence of the EU - Present and Future Challenges’, Stockholm, 6 March 2007
2006
Law-Making by International Organizations and the Principle of Legal Certainty, presentation at the Annual Ius Commune conference, Workshop ‘Global Governance and the Rule of Law’, Utrecht, 1 December 2006
Too much constitutional law?, presentation at the seminar ‘EU Foreign Relations Law - Constitutional Fundamentals’, European University Institute, Florence, 10-11 November 2006
European Security and Defence Policy, presentation at the European Parliament, 20 October 2006
UN Peace-keeping, Interview Trouw, 29 September 2006
Introducing Multilevel Regulation, paper presented at the expert seminar organised by the Hague Institute for the Internationalisation of Law (HiiL) on ‘Multilevel Regulation: The Interrelation between Regulatory Activities of the European Union and other International Organizations and its Effect on the State – Legal, Political and Philosophical Dimensions of Legitimacy, Accountability and the Rule of Law’, The Hague, 26-27 June 2006
The Division of Competence between the EU and its Member States, presentation at the conference ’Interface between European and National Law’, Amsterdam Center for International Law, 23 June 2006
De Europese Unie in de wereld, presentation at the Ministry for Foreign Affairs, 11 May 2006
National anti-terrorism measures, Interview Radio 1, 20 April 2006
Buitenlands, veiligheids- en defensiebeleid van de EU, presentation for the Nederlandse School voor Openbaar Bestuur, The Hague, April 2006
2005
The European Union as a Party to International Agreements, paper presented at the seminar ‘Recent Trends in the External Relations of the EU’, Ghent, 20 December 2005