@inbook{Billari2002,
author = {Billari, F.C. and Castiglioni, M.T.C. and Michelin, F. and Ongaro, F.},
title= {Household and union formation in a Mediterranean fashion: Italy and Spain},
year = {2002},
editor = {Kijzing, E.},
editor = {Corijn, M. },
booktitle = {Dynamics of fertility and partnership in Europe: insights and lessons from comparative research},
address = {New York, Geneva},
pages = {15--42},
series = {Vol. 2},
}