@article{Beaujouan2011,
author = {Beaujouan, E.  and Ni Bhrolchain, M.},
title= {Cohabitation and marriage in Britain since the 1970s},
year = {2011},
doi = {10.1057/pt.2011.16},
journal = {Population Trends},
volume = {145},
pages = {35--59},
}