TY - CHAP A1 - Gustafsson, S. T1 - Optimal age at motherhood. Theoretical and empirical considerations on postponement of maternity in Europe Y1 - 2003 DO - 10.1007/978-3-642-55573-2_17 A3 - Zimmermann, K.F. A3 - Vogler, M. T2 - Family, Household and Work CY - Berlin/Heidelberg PB - Springer-Verlag ER -