@article{Powers2005,
author = {Powers, D.A.},
title= {Effects of family structure on the risk of first premarital birth in the presence of correlated unmeasured family effects},
year = {2005},
doi = {10.1016/j.ssresearch.2004.04.007},
journal = {Social Science Research},
volume = {34},
number = {3},
pages = {511--537},
}