@article{Lawson2016,
author = {Lawson, D.W. and Borgerhoff Mulder, M.},
title= {The offspring quantity-quality trade-off and human fertility variation},
year = {2016},
doi = {10.1098/rstb.2015.0145},
URL = {https://doi.org/10.1098/rstb.2015.0145},
volume = {371},
number = {1692},
}