@techreport{Shkolnikov2004,
author = {Shkolnikov, V.M. and Andreev, E.M. and Houle, R. and Vaupel, J.W.},
title= {The concentration of reproduction in cohorts of US and European women},
year = {2004},
URL = {http://www.demogr.mpg.de/papers/working/wp-2004-027.pdf},
publisher = {Max Planck Institute for Demographic Research},
address = {Rostock},
number = {MPIDR Working Paper WP 2004-027},
}