Brodie, P., K. Ramirez, and M. Haulena. “Growth and Maturity of Belugas (Delphinapterus Leucas) in Cumberland Sound, Canada, and in Captivity: Evidence for Two Growth Layer Groups (GLGs) Per Year in Teeth”. J. Cetacean Res. Manage. 13, no. 1 (February 8, 2023): 1–18. Accessed September 28, 2025. https://journal-iwc-live.netxtra.dev/index.php/jcrm/article/view/550.