1. Allievi, S. (2009). Conflicts over Mosques in Europe. London: Alliance Publishing Trust.
2. Barker, P. W. (2009). Religious nationalism in modern Europe. If God be for us. New York: Routledge.
3. Baubérot, J. (2017). Historie de la laïcité en France. Paris: PUF.
4. Berger, P. (2014). The many altars of modernity: Toward a paradigm for religion in a pluralist age. Boston and Berlin: De Gruyter.
5. Biedenkopf, K., Geremek, B., & Michalski, K. (2004). The spiritual and cultural dimension of Europe. Reflection group initiated by the President of the European Commission and coordinated by the Institute for Human Sciences. Vienna/Brussels: European Commission, Community Research.