@article{Rodgers2001,
author = {Rodgers, J.L. and Kohler, H.P. and Kyvik, K.O. and Christensen, K.},
title= {Behavior genetic modeling of human fertility: Findings from a contemporary Danish twin study},
year = {2001},
doi = {10.1353/dem.2001.0009},
volume = {38},
number = {1},
pages = {29--42},
}