Donati, G., Balestri, M., Campera, M., Hyde Roberts, S., Račevska, E., Ramanamanjato, J.-B. & Ravoahangy, A.: Eulemur collarisIUCN Red List of Threatened Species. Version 2020-3. 2020. International Union for Conservation of Nature, IUCN, Iucnredlist.org. Viitattu 18.12.2020. (englanniksi)