@techreport{Sobotka2005,
author = {Sobotka, T. and Lutz, W. and Philipov, D.},
title= {Missing births’: Decomposing the declining number of births in Europe into tempo, quantum, and age structure effects},
year = {2005},
publisher = {VID},
address = {Vienna},
institution = {European Demographic Research Papers WP 2},
}