@inbook{Billari2005,
author = {Billari, F.C.},
title= {Partnership, childbearing and parenting: Trends of the 1990s},
year = {2005},
editor = {Macura, M.},
editor = {MacDonald, A.},
editor = {Haug, W.},
booktitle = {The new demographic regime: Population challenges and policy responses},
address = {New York},
publisher = {United Nations},
pages = {63--94},
}