@article{Grzymała-Kazłowska2005,
author = {Grzymała-Kazłowska, A.},
title= {From ethnic cooperation to in-group competition: Undocumented Polish workers in Brussels},
year = {2005},
doi = {10.1080/13691830500109787},
volume = {31},
number = {4},
pages = {675--697},
}