@article{Kaplan2002,
author = {Kaplan, H. and Lancaster, J.B. and Tucker, W.T. and Anderson, K.G.},
title= {Evolutionary approach to below replacement fertility},
year = {2002},
doi = {10.1002/ajhb.10041},
journal = {American Journal of Human Biology},
volume = {14},
number = {2},
pages = {233--256},
}