1. Observational study of behaviour;Altmann;Behaviour,1974
2. Baker, C. S. & Herman, L. M. (1989). Behavioural responses of summering humpback whales to vessel traffic: Experimental and opportunistic observations. Final Report to the National Park Service. Anchorage, Alaska: Alaska Regional Office.
3. Humpback whales of Glacier Bay, Alaska;Baker;Whalewatcher,1988
4. Barr, K. (1996). Impacts of tourist vessels on the behaviour of dusky dolphins (Lagenorhynchus obscurus) at Kaikoura. M.Sc. thesis, Department of Marine Sciences, University of Otago.
5. Diurnal behavior of free-ranging bottlenose dolphins in the Kvarneric (Northern Adriatic Sea);Bearzi;Marine Mammal Science,1999