Pitman, R.L. & Totterdell, J.A. & Fearnbach, H. & Ballance, L.T. & Durban, J.W. & Kemps, H. (2015)
Whale killers: Prevalence and ecological implications of killer whale predation on humpback whale calves off Western Australia. Marine Mammal Science, 31(2), 629–657
DOI: 10.1111/mms.12182

Pitman, R.L. & Van Helden, A.L. & Best, P.B. & Pym, A. (2006)
Shepherd's Beaked Whale (Tasmacetus shepherdi): Information on Appearance and Biology Based on Strandings and At-Sea Observations. Marine Mammal Science, 22(3), 744–755
DOI: 10.1111/j.1748-7692.2006.00066.x

Matsuoka, K. & Pitman, R.L. & Marquez, F.F.C. (2005)
A note on a pygmy right whale (Caperea marginata) sighting in the southwestern Pacific Ocean. Marine Mammal Science, 21(4), 773–779

Pitman, R.L. & Ballance, L.T. & Mesnick, S.I. & Chivers, S.J. (2001)
Killer Whale Predation on Sperm Whales: Observations and Implications. Marine Mammal Science, 17(3), 494–507
DOI: 10.1111/j.1748-7692.2001.tb01000.x