@inbook{Billari2005,
author = {Billari, F.},
title= {Partnership, childbearing and parenting: trends of the 1990s},
year = {2005},
editor = {Macura, M.},
editor = {MacDonald, A.L.},
editor = {Haug, W.},
booktitle = {The new demographic regime: Population challenges and policy responses},
address = {Geneva},
publisher = {United Nations},
}