@article{Sheppard2014,
author = {Sheppard, P. and Schaffnit, S.B. and Garcia, J.R. and Sear, R.},
title= {Fostering relationships: First sex and marital timings for children raised by kin and non-kin carers},
year = {2014},
doi = {10.1016/j.evolhumbehav.2013.12.002},
journal = {Evolution and Human Behavior},
volume = {35},
number = {3},
pages = {161--168},
}