TY  - JOUR
A1  - Koch, A.
A1  - Blom, A.G.
A1  - Stoop, I.
A1  - Kappelhof, J.W.
T1  - Data collection quality assurance in cross-national surveys: The example of the ESS
Y1  - 2009
VL  - 3
IS  - 2

ER  -