TY  - JOUR
A1  - Welkenhuysen-Gybels, J.
A1  - Billiet, J.
T1  - The impact of third party presence in survey interviews on the measurement of political knowledge
Y1  - 2001
DO  - 10.1023/A:1016094700288
VL  - 36
IS  - 3

ER  -