@article{England2013,
author = {England, P. and Wu, L.L. and Shafer, E.F.},
title= {Cohort trends in premarital first births: What role for the retreat from marriage?},
year = {2013},
doi = {10.1007/s13524-013-0241-1},
volume = {50},
number = {6},
pages = {2075--2104},
}