HÄRKÖNEN, T.; STENMAN, O.; JÜSSI, M.; JÜSSI, I.; SAGITOV, R.; VEREVKIN, M. Population size and distribution of the Baltic ringed seal (<i>Phoca hispida botnica</i>). NAMMCO Scientific Publications, [S. l.], v. 1, p. 167–180, 1998. DOI: 10.7557/3.2986. Disponível em: https://new.eludamos.org/index.php/NAMMCOSP/article/view/2986. Acesso em: 8 jan. 2025.