@inbook{Morgan2006,
author = {Morgan, P.S. and Hagewen, K.J.},
title= {Fertility},
year = {2006},
editor = {Poston, D.L.},
editor = {Micklin, M.},
booktitle = {Handbook of population},
address = {New York},
publisher = {Springer},
pages = {229--249},
}