DAVIS, James L.; VALKENBURG, Patrick; BOERTJE, Rodney D. Empirical and theoretical considerations toward a model for caribou socioecology. Rangifer, Tromsø, Norway, v. 6, n. 2, p. 103–109, 1986. DOI: 10.7557/2.6.2.589. Disponível em: https://septentrio.uit.no/index.php/rangifer/article/view/589. Acesso em: 2 may. 2026.