@article{Willoughby2012,
author = {Willoughby, B.J. and Carroll, J.S. and Busby, D.M.},
title= {The different effects of ‘living together’: Determining and comparing types of cohabiting couples},
year = {2012},
doi = {10.1177/0265407511431184},
volume = {29},
number = {3},
pages = {397--419},
}