@inbook{Kohler2001,
author = {Kohler, H.-P. and Bühler, C.},
title= {Social networks and fertility},
year = {2001},
doi = {10.1016/B0-08-043076-7/02176-8},
editor = {Smelser, N.J.},
editor = {Baltes, P.B.},
booktitle = {International encyclopedia of the social & behavioral sciences},
address = {San Diego},
publisher = {Elsevier Ltd.},
pages = {14380--14384},
}