@article{Sassler2004,
author = {Sassler, S.},
title= {The process of entering into cohabiting unions},
year = {2004},
doi = {10.1111/j.1741-3737.2004.00033.x},
journal = {Journal of marriage and the family},
volume = {66},
number = {2},
pages = {491--505},
}