Lockyer, Christina, Aleta A. Hohn, Roderick Hobbs, and Robert EA Stewart. “Report of the workshop on age estimation in beluga: Beaufort, North Carolina, US 5-9 December 2011”. NAMMCO Scientific Publications 10 (February 3, 2016). Accessed January 8, 2025. https://new.eludamos.org/index.php/NAMMCOSP/article/view/3731.