‘The House of Lords and religious clothing in Begum v Headteacher and Governors of Denbigh High School’ (2007) 13 European Public Law 423-432.
‘Services, citizenship and the country of origin principle’, University of Edinburgh Mitchell Working Paper, July 2007.
‘The Community’s internal market based competence to regulate healthcare: scope, strategies and consequences’ (2007) Maastricht Journal of European and Comparative Law.
‘The Services Directive: Extending the country of origin principle and reforming public administration’ (2007) 32 European Law Review 232-245.
‘The impact of Union citizenship on national citizenship policies’ (with Karolina Rostek), Tulane Civil and European Law Forum, forthcoming 2007 (now on European Integration Online Papers, www.eiop.or.at)
‘Subsidiarity as a method of policy centralisation’, forthcoming in Shany and Broude (eds) The Allocation of Authority in International Law (Hart, 2007). Previously distributed as (2006) Hebrew University International Law Research Paper 11-06.
‘Morality clauses and decision-making in situations of scientific uncertainty: the case of GMOs’, (2007) 6 World Trade Review, 249-263. Previously distributed as (2006) Hebrew University International Law Research Paper10-06.
‘Reforming the Relationship between National and European Courts’ in Fijalkowski (ed) International Institutional Reform (Asser Press, 2007) 185-192.
Europees Recht (a boom basic guide), Boom Juridische Uitgevers, 2002, 2003, 2004, 2005, 2006, 2007 (with F.Amtenbrink and H.H.B.Vedder)
‘The process and side-effects of harmonisation of European welfare states’, Jean Monnet Working Paper 2/06, www.jeanmonnetprogram.org, pp64.
‘Subsidiarity: the wrong idea, in the wrong place, at the wrong time’ (2006) 43 Common Market Law Review 63-84.
‘Abstractness and concreteness in the preliminary reference procedure’ in Niamh Nic Shuibhne(ed) Regulating the Internal Market (Edward Elgar, 2006), 210-145, also available as ‘The division of powers between the European Court of Justice and national courts’ on ssrn.com.
‘Is Mutual Recognition an Alternative to Harmonisation? Lessons in Tolerance and Trade from the European Union for the WTO and other RTAs’ in F.Ortino and L.Bartels (eds.) Regional Trade Agreements and the WTO (OUP, 2006) 265-280.
‘The caselaw of the Court of Justice in the field of sex equality since 2000’ (second author, with Cathryn Costello), (2006) 43 Common Market Law Review, 1567-1616.
‘Thou shalt not discriminate against women: public subsidies to religious parties condemned in Clara Wichmann v the Dutch State’ (2006) 2:1 European Constitutional Law Review 152-166.
‘Competition, free movement and consumers of public services, (2006) European Business Law Review 95-104
‘Can selling arrangements be harmonised?’ (2005) 30 European Law Review 370-385
‘Higher Education, Equal Access, and Residence Conditions: Does EU Law allow Member States to Charge Higher Fees to Students not Previously Resident in that State?’, (2005) 12:3 Maastricht Journal of European and Comparative Law 217-230
‘Any Place I Hang my Hat? Or: Residence is the New Nationality’ (2005) 11:1 European Law Journal 43-56
‘Banning the Jilbab: Reflections on Restricting Religious Clothing in the Light of SB v Denbigh High School’, (2005) 1 European Constitutional Law Review 511-530.
‘Should Diagonal Discrimination Claims be Allowed?’, (2005) 25:2 Legal Studies 181-200
‘Welfare Services and the European State’ in (eds.) A-C Simon and P.Nihoul Les soins de santé dans le droit de l'Union européenne. Marché intérieur, sécurité sociale, concurrence (Larcier, 2005) 373-391
‘Extending EU Consumer Law to Welfare Services: legal Possibilities and Political Implications’ (2005) 55:2 Osaka Law Review 513-537
‘European Law for the 21st Century’ (Review Essay) (2005) 30 European Law Review 916-922
‘Subsidiariteit en Bevoegdheden in de Europese Grondwet’ in Amtenbrink and van Baalen (eds.) Europa; Eenheid in Verscheidenheid? (Boom Juridische Uitgevers, 2005) 69-82
‘The high water point of free movement of persons’, (2004) 26 Journal of Family Law and Social Welfare 211-222
‘Health and efficiency: Community law and national health systems in the light of Müller-Fauré’ (2004) 67 Modern Law Review 94-107
‘The post-Laeken division of powers’ (2003) 28 European Law Review 686-699
‘Consumer protection as an obstacle to the free movement of goods’ 2003:3 ERA Forum, 55-66
‘Of rules and referees: Arsenal v Reed’ (2003) European Law Review 408-417
‘Bureaucracy and free movement: A conflict of form and substance’ (2003) Nederlands Tijdschrift voor Europees Recht 81-89
Nationality discrimination and free movement law (PhD thesis, doctorate conferred December 2002). Published as Nationality Discrimination in the European Internal Market, Kluwer Law International, 2003
European Union Internal Market Law, pp226, Cavendish publishing, 1st edn. 2002, 2nd edn. 2003
Vier Vrijheden: Een inleiding tot het recht van de Europees interne markt, Boom Juridische Uitgevers, 2003 (second author, with J.F.Appeldoorn)
‘Welfare as a service’ (2002) 29 Legal Issues of Economic Integration 27-40
‘European law and the end of Europe’ (2002) 21 Siegener Periodicum zur Internationalen Literatuurwissenschaft (SPIEL) 215-227