Short CV/Education and training

    Study of law at the University of Leuven (KU Leuven, Belgium) and European law at the College of Europe in Bruges (Belgium)

    PhD Maastricht University

    Professor of European and Comparative Constitutional at Tilburg University

    Professor of European and Comparative Constitutional Law at the Law Faculty of Maastricht University

Selected publications

  • Claes, M. (2016). The validity and primacy of EU law and the ‘cooperative relationship’ between national constitutional courts and the European Court of Justice. Maastricht Journal of European and Comparative Law, 23(1), 151-170.

  • Claes, M. (2015). The primacy of EU law in European and in national law. In A. Arnull, & D. Chalmers (Eds.), The Oxford Handbook of European Law. (pp. 178-211). Oxford: Oxford University Press.

  • Claes, M. (2015). Luxembourg, here we come? National constitutional courts and the preliminary reference procedure. German Law Journal, 1331-1342.

  • Besselink, L. F. M., Claes, M., & Reestman, J. H. (2015). A constitutional moment. Acceding to the ECHR (or not) (Editorial). European Constitutional Law Review, 11(1), 2-12. DOI: 10.1017/S1574019615000024

  • Claes, M., & Reestman, J. H. (2015). The protection of national constitutional identity and the limits of European integration at the occasion of the Gauweiler Case. German Law Journal, 917-970.

  • Reestman, J. H., & Claes, M. (2014). For history's sake: on Costa v. ENEL, André Donner and the eternal secret of the Court of Justice's deliberations (editorial). European Constitutional Law Review, 10(2), 191-198. DOI: 10.1017/S1574019614001151

  • Dawson, M., Muir, E., & Claes, M. (2014). A tool-box for legal and political mobilisation in European equality law. In D. Anagnostou (Ed), Rights in pursuit of social change: legal mobilisation in the multi-level European system. (pp. 105-126). (Onati International Series in Law and Society). Oxford: Hart Publishing.

  • Besselink, L. F. M., Claes, M., Imamović, Š., & Reestman, J. H. (2014). National constitutional avenues for further EU integration. (Report for the European Parliament's Committees on Legal Affairs and on Constitutional Affairs; No. PE 493.046). Brussels: European Union. DOI: 10.2861/52990

  • Claes, M. (2013). The impact of Van Gend en Loos beyond the scope of EU law. In A. Tizzano, J. Kokott, & S. Prechal (Eds.), 50th Anniversary of the judgment in Van Gend en Loos 1963-2013. (pp. 103-110). Luxembourg: Office des publications de l'Union européenne.

Complete list of publications

Membership in scientific bodies/juries

  • Alumna of De Jonge Akademie (DJA)

  • Co-editor-in-chief of the European Constitutional Law Review (EuConst)

  • Member editorial board of the Maastricht Journal of European and Comparative Law (MJ)

  • Former member of the editorial board of the Tijdschrift voor Constitutioneel Recht (TvCR)


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