@article{Zimmermann2009,
author = {Zimmermann, K.F. and Constant, A.F. and Gatullina, L.},
title= {Naturalization proclivities, ethnicity and integration},
year = {2009},
doi = {10.1108/01437720910948401},
journal = {International Journal of Manpower},
volume = {30},
number = {1/2},
pages = {70−82},
}