@article{Hawkes2010,
author = {Hawkes, K.},
title= {How grandmother effects plus individual variation in frailty shape fertility and mortality: Guidance from human–chimpanzee comparisons},
year = {2010},
doi = {10.1073/pnas.0914627107},
journal = {Proceedings of the National Academy of Sciences},
volume = {107},
number = {Supplement 2},
pages = {8977‒8984},
}