van den Brink, Martijn Ethics, Law and Politics, MPI for the Study of Religious and Ethnic Diversity, Max Planck Society;
https://www.cambridge.org/core/journals/international-and-comparative-law-quarterly/article/qualified-defence-of-the-primacy-of-nationality-over-european-union-citizenship/48AD1DDCA849164FEA8EC9B021325A7C (Any fulltext)
van den Brink, M. (2019). A Qualified Defence of the Primacy of Nationality over EU Citizenship. International and Comparative Law Quarterly, 69(1), 177-202. doi:10.1017/S0020589319000538.