% pubman genre = article
@article{item_1553055,
title = {{The roots of human altruism}},
author = {Warneken, Felix and Tomasello, Michael},
language = {eng},
doi = {10.1348/000712608X379061},
year = {2009},
date = {2009},
journal = {{British Journal of Psychology}},
volume = {100},
number = {3},
pages = {455--471},
}