Dalebout, M. & Russell, K. & Little, M. & Ensor, P. (2004)
Observations of live Gray’s beaked whales (Mesoplodon grayi) in Mahurangi Harbour, North Island, New Zealand, with a summary of at-sea sightings. Journal of the Royal Society of New Zealand, 34(4), 347–356
DOI: 10.1080/03014223.2004.9517771