@article{Sear2003,
author = {Sear, R. and Mace, R. and McGregor, I.A.},
title= {The effects of kin on female fertility in rural Gambia},
year = {2003},
doi = {10.1016/S1090-5138(02)00105-8},
journal = {Evolution and Human Behavior },
volume = {24},
number = {1},
pages = {25--42},
}