Herman, L. M.; Baker, C. S.; Forestell, P. H. & Antinoja, R. C. (1980). “Right Whale Balaena glacialis Sightings Near Hawaii: A Clue to the Wintering Grounds?”. Mar. Ecol. Prog. Ser.2: 271–275. Bibcode: 1980MEPS....2..271H. doi:10.3354/meps002271.
Ovsyanikova, Ekaterina (2015). “Opportunistic sightings of the endangered North Pacific right whales (Eubalaena japonica) in Russian waters in 2003–2014”. Marine Mammal Science(英語版)31 (4): 1559–1567. doi:10.1111/mms.12243.
Baker, C. S.; Dalebout, M. L.; Lento, G. M.; Funahashi, Naoko (2002). “Gray Whale Products Sold in Commercial Markets Along the Pacific Coast of Japan”. Marine Mammal Science(英語版)18: 295. doi:10.1111/j.1748-7692.2002.tb01036.x.
Herman, L. M.; Baker, C. S.; Forestell, P. H. & Antinoja, R. C. (1980). “Right Whale Balaena glacialis Sightings Near Hawaii: A Clue to the Wintering Grounds?”. Mar. Ecol. Prog. Ser.2: 271–275. Bibcode: 1980MEPS....2..271H. doi:10.3354/meps002271.
Phillip J. Clapham, Alex N. Zerbini, Amy Kennedy, Brenda Rone & Catherine Berchok Update on North Pacific Right Whale Research(PDF) National Marine Mammal Laboratory. Retrieved on 2011-09-15.(2011年7月19日時点のアーカイブ)
Society for Marine Mammalogy(英語版) (1994). “Right whale (Eubalaena glacialis) sighting off San Clemente Island, California”. Marine Mammal Science(英語版) (10(1)): 101-105.
Ovsyanikova, Ekaterina (2015). “Opportunistic sightings of the endangered North Pacific right whales (Eubalaena japonica) in Russian waters in 2003–2014”. Marine Mammal Science(英語版)31 (4): 1559–1567. doi:10.1111/mms.12243.
Baker, C. S.; Dalebout, M. L.; Lento, G. M.; Funahashi, Naoko (2002). “Gray Whale Products Sold in Commercial Markets Along the Pacific Coast of Japan”. Marine Mammal Science(英語版)18: 295. doi:10.1111/j.1748-7692.2002.tb01036.x.