TY - JOUR A1 - Schneider, N.F. A1 - Bujard, M. A1 - Wolf, C. A1 - Gummer, T. A1 - Hank, K. A1 - Neyer, F.J. T1 - Family research and demographic analysis (Freda): Evolution, framework, objectives, and design of ‘the German family demography panel study’ Y1 - 2021 DO - 10.12765/CPoS-2021-06 VL - 46 ER -