@article{Hofferth2010,
author = {Hofferth, S.L.  and Goldscheider, F. },
title= {Family structure and the transition to early parenthood},
year = {2010},
doi = {10.1353/dem.0.0102},
journal = {Demography },
volume = {47},
number = {2},
pages = {415--437},
}