@inbook{Kupiszewska2008,
author = {Kupiszewska, D. and Nowok, B.},
title= {Comparability of statistics on international migration flows in the European Union},
year = {2008},
doi = {10.1002/9780470985557.ch3},
editor = {Raymer, J.},
editor = {Willekens, F.},
booktitle = {International migration in Europe: Data, models and estimates},
address = {Chichester},
publisher = {John Wiley and Sons},
pages = {41--71},
}