@article{Koopmans2010,
author = {Koopmans, R.},
title= {Trade-Offs between Equality and Difference: Immigrant Integration, Multiculturalism and the Welfare State in Cross-National Perspective},
year = {2010},
doi = {10.1080/13691830903250881},
journal = {Journal of Ethnic and Migration Studies},
volume = {36},
number = {1},
pages = {1--26},
}