% pubman genre = article
@article{item_1554773,
title = {{Helping and cooperation at 14 months of age}},
author = {Warneken, Felix and Tomasello, Michael},
language = {eng},
doi = {10.1111/j.1532-7078.2007.tb00227.x},
year = {2007},
date = {2007},
journal = {{Infancy}},
volume = {11},
number = {3},
pages = {271--294},
}