@article{Liefbroer2006,
author = {Liefbroer, A.C. and Dourleijn, E.},
title= {Unmarried Cohabitation and Union Instability: Testing the Role of Diffusion Using Data from 16 European Countries},
year = {2006},
journal = {Demography},
volume = {43},
number = {2},
pages = {203--221},
}