@article{Kramer2005,
author = {Kramer, K.L.},
title= {Children’s help and the pace of reproduction: Cooperative breeding in humans},
year = {2005},
doi = {10.1002/evan.20082},
URL = {https://doi.org/10.1002/evan.20082},
volume = {14},
number = {6},
pages = {224--237},
}