TY - RPRT A1 - Burkimsher, M. T1 - Modelling biological birth order and comparison with census parity data in Switzerland: A report to complement the Swiss data in the Human Fertility Collection (HFC) Y1 - 2011 PB - Max Planck Institute for Demographic Research CY - Rostock IS - MPIDR Technical Report TR-2011-005 ER -