TY  - JOUR
A1  - Schonlau, M.
A1  - Soest, A.
A1  - Kapteyn, A.
T1  - Are ‘Webographic’ or attitudinal questions useful for adjusting estimates from web surveys using propensity scoring?
Y1  - 2007
DO  - 10.2139/ssrn.1006108
VL  - 1
IS  - 3

ER  -