Stasik, Michael Socio-Cultural Diversity, MPI for the Study of Religious and Ethnic Diversity, Max Planck Society;
https://brill.com/view/book/edcoll/9789004339040/B9789004339040-s002.xml (Any fulltext)
Stasik, M., Beck, K., & Klaeger, G. (2017). An introduction to the African road. In M. Stasik, K. Beck, & G. Klaeger (Eds.), The Making of the African Road (pp. 1-23). Leiden: Brill.