TY - RPRT A1 - Blom, A.G. A1 - De Leeuw, E.D. A1 - Hox, J.J. T1 - Interviewer effects on nonresponse in the European social survey Y1 - 2010 PB - University of Essex, Institute for Social and Economic Research CY - Colchester T3 - Working paper 2010-25 ER -