TY - RPRT A1 - Frejka, T. T1 - Cohort overlays of evolving childbearing patterns: How postponement and recuperation are reflected in period fertility trends Y1 - 2010 DO - 10.4054/MPIDR-WP-2010-026 PB - Max Planck Institute for Demographic Research CY - Rostock IS - MPIDR working paper WP-2010-026 ER -