TY - CHAP A1 - Kreyenfeld, M. T1 - Family formation in East and West Germany before and after unification Y1 - 2006 DO - 10.1007/1-4020-4716-9_9 A3 - Gustafsson, S. A3 - Kalwij, A. T2 - Education and postponement of maternity: Economic analyses for industrialized countries CY - Amsterdam PB - Springer ER -