@article{article040931cf,
title   = {Physical properties of palm fruits processed with tools by wild bearded capuchins (Cebus libidinosus)},
author = {Visalberghi, Elisabetta and Sabbatini, Gloria and Spagnoletti, Noemi and Andrade, Fábio Ramos Dias de and Ottoni, Eduardo Benedicto and Izar, Patricia and Fragaszy, Dorothy},
year = {2008},
doi = {10.1002/ajp.20578},
journal   = {American Journal of Primatology}
}