@article{Tanskanen2011,
author = {Tanskanen, A.O. and Rotkirch, A. and Danielsbacka, M.},
title= {Do grandparents favor granddaughters? Biased grandparental investment in the UK},
year = {2011},
doi = {10.1016/j.evolhumbehav.2011.02.001},
journal = {Evolution and Human Behavior},
volume = {32},
number = {6},
pages = {407--415},
}