RUGH, D. J. .; HOBBS , R. C. .; LERCZAK , J. A. .; BREIWICK , J. M. . Estimates of abundance of the eastern North Pacific stock of gray whales (Eschrichtius robustus) 1997-2002. J. Cetacean Res. Manage., [S. l.], v. 7, n. 1, p. 1–12, 2023. DOI: 10.47536/jcrm.v7i1.751. Disponível em: https://journal-iwc-live.netxtra.dev/index.php/jcrm/article/view/751. Acesso em: 28 sep. 2025.