@article{Sear2008,
author = {Sear, R. and Mace, R. },
title= {Who keeps children alive? A review of the effects of kin on child survival},
year = {2008},
doi = {10.1016/j.evolhumbehav.2007.10.001},
journal = {Evolution and Human Behavior},
volume = {29},
number = {1},
pages = {1--18},
}