J. Ersts, Peter, Jeremy Kiszka, Michel Vély, and Howard C. Rosenbaum. “Density, Group Composition and Encounter Rates of Humpback Whales (Megaptera Novaeangliae) in the Eastern Comoros Archipelago (C2)”. J. Cetacean Res. Manage., no. 3 (October 22, 2020): 175–182. Accessed September 28, 2025. https://journal-iwc-live.netxtra.dev/index.php/jcrm/article/view/330.