(en) R. I. M. Dunbar, « Neocortex size as a constraint on group size in primates », Journal of Human Evolution, vol. 22, no 6, , p. 469–493 (ISSN0047-2484, DOI10.1016/0047-2484(92)90081-J).
(en) R. I. M. Dunbar, « Neocortex size as a constraint on group size in primates », Journal of Human Evolution, vol. 22, no 6, , p. 469–493 (ISSN0047-2484, DOI10.1016/0047-2484(92)90081-J).