@article{Heuveline2004,
author = {Heuveline, P. and Timberlake, J.M.},
title= {The Role of Cohabitation in Family Formation: The United States in Comparative Perspective},
year = {2004},
doi = {10.1111/j.0022-2445.2004.00088.x},
journal = {Journal of Marriage and Family},
volume = {66},
number = {5},
pages = {1214--1230},
}