@article{article8ab1eb8a,
title   = {Does group size matter? Cheating and cooperation in Brazilian school children},
author = {Alencar, Anuska Irene and Siqueira, José de Oliveira and Yamamoto, Maria Emília},
year = {2008},
doi = {10.1016/j.evolhumbehav.2007.09.001},
journal   = {Evolution and Human Behavior}
}