TY  - CHAP
A1  - Kupiszewska, D. 
A1  - Nowok, B. 
T1  - Comparability of statistics on international migration flows in the European Union
Y1  - 2008
A3  - Willekens, F.
A3  - Raymer, J.
T2  - International migration in Europe: Data, models and estimates
CY  - London
PB  - Wiley

ER  -