@article{Pollet2006,
author = {Pollet, T.V. and Nettle, D. and Nelissen, M.},
title= {Contact frequencies between grandparent and grandchildren in a modern society: estimates of the impact of paternity uncertainty},
year = {2006},
doi = {10.1556/JCEP.4.2006.3-4.1},
journal = {Journal of Cultural and Evolutionary Psychology},
volume = {4},
number = {3–4},
pages = {203--213},
}