@article{Koops2021,
author = {Koops, J.C. and Liefbroer, A.C. and Gauthier, A.H.},
title= {Having a child within a cohabiting union in Europe and North America: What is the role of parents’ socio‐economic status?},
year = {2021},
doi = {10.1002/psp.2434},
volume = {27},
number = {6},
pages = {1--15},
}