Baker, Alan N.; Smith, Adam N.H.; Pichler, Franz B. (2002). „Geographical variation in Hector's dolphin: recognition of a new subspecies of Cephalorhynchus hectori“. Journal of the Royal Society of New Zealand. 32 (4): 713–727. CiteSeerX10.1.1.113.9489. doi:10.1080/03014223.2002.9517717.
Baker, Alan N.; Smith, Adam N.H.; Pichler, Franz B. (2002). „Geographical variation in Hector's dolphin: recognition of a new subspecies of Cephalorhynchus hectori“. Journal of the Royal Society of New Zealand. 32 (4): 713–727. CiteSeerX10.1.1.113.9489. doi:10.1080/03014223.2002.9517717.