Douglas EL, Friedl WA, Pickwell GV (1976). «Fishes in oxygen-minimum zones: blood oxygenation characteristics». Science. 191 (4230): 957–959. doi:10.1126/science.1251208.{{cite journal}}: CS1 սպաս․ բազմաթիվ անուններ: authors list (link)
google.am
books.google.am
University of California. Division of War Research. Carl Eckart (ed.). Principles of Underwater Sound. National Academies. էջ 101.
Hersey JB, Backus RH (2005). «Sound Scattering by Marine Organisms». In M. N. Hill, A. R. Robinson (ed.). Physical Oceanography. Harvard University Press. էջ 499. ISBN9780674017276.