Shachar, Ayelet Ethics, Law and Politics, MPI for the Study of Religious and Ethnic Diversity, Max Planck Society;
https://ssrn.com/abstract=3185561 (Any fulltext)
https://global.oup.com/academic/product/the-oxford-handbook-of-citizenship-9780198805854?cc=de&lang=en&# (Table of contents)
Shachar, A. (2017). Citizenship for sale? In A. Shachar, R. Bauböck, I. Bloemraad, & M. Vink (Eds.), The Oxford handbook of citizenship (pp. 789-816). Oxford: Oxford University Press. doi:10.1093/oxfordhb/9780198805854.013.34.