@article{Sobotka2005,
author = {Sobotka, T. and Winkler-Dworak, M. and Testa, M.R. and Lutz, W. and Philipov, D. and Engelhardt, H. and Gisser, R.},
title= {Monthly estimates of the quantum of fertility: Towards a fertility monitoring system in Austria},
year = {2005},
journal = {Vienna Yearbook of Population Research},
volume = {3},
pages = {109--141},
}