@article{Manlove2012,
author = {Manlove, J. and Wildsmith, E. and Ikramullah, E. and Terry-Humen, E. and Schelar, E.},
title= {Family environments and the relationship context of first adolescent sex: Correlates of first sex in a casual versus steady relationship},
year = {2012},
doi = {10.1016/j.ssresearch.2012.02.003},
volume = {41},
pages = {861--875},
}