@inbook{Davis1999,
author = {Davis, J.N. and Todd, P.M.},
title= {Parental investment by simple decision rules},
year = {1999},
editor = {Gigerenzer, G.},
editor = {Todd, P.M.},
editor = {Group, the ABC Research},
booktitle = {Simple heuristics that make us smart},
address = {New York},
publisher = {Oxford University Press},
pages = {309--324},
}