TY - BOOK A1 - Nauck, B. A1 - BrĂ¼derl, J. A1 - Huinink, J. A1 - Walper, S. T1 - The German family panel (pairfam) (ZA5678 data file version 3.1.0) Y1 - 2012 CY - Cologne PB - GESIS Data Archiv ER -