@article{article8b081021,
title   = {Cooperation and metacontingency in pigeons},
author = {Velasco, Saulo Missiaggia and Benvenuti, Marcelo Frota Lobato and Sampaio, Angelo Augusto Silva and Tomanari, Gerson Yukio},
year = {2017},
doi = {10.1007/s40732-017-0256-x},
journal   = {Psychological Record}
}