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/books/eu-citizenship-and-federalism/origins-and-the-potential-federalising-effects-of-the-substance-of-rights-test/F2AF15A8279C140A3ECBB7585BFC51F9/core-reader (Any fulltext)
van den Brink, M. (2017). The origins and the potential federalising effects of the substance of rights test. In D. Kochenov (Ed.), EU Citizenship and Federalism: The Role of Rights (pp. 85-106). Cambridge University Press. doi:10.1017/9781139680714.004.