1. Belikov, S.E., Boltunov, A.N., and Gorbunov, Y.A., Distribution and migrations of Cetaceans in Russian Arctic according to multiyear aerial reconnaissance of sea ice and information from “North Pole” drift station, in Morskie mlekopitayushchie (Rezul’taty issledovanii, provedennykh v 1995–1998 gg.) (Marine Mammals (Results of Research, 1995–1998)), Moscow: Sovet po morskim mlekopitayushchim (Marine Mammal Council), 2002, pp. 21–51.
2. Berzin, A.A. and Yablokov, A.V., Numbers and population structure of the main exploited species of Cetaceans in the World Ocean, Zool. Zh., 1978, vol. 57, no. 12, pp. 1771–1785.
3. Brown Gladden, J.G., Ferguson, M.M., and Clayton, J.W., Matriarchal genetic population structure of North American beluga whales, Delphinapterus leucas (Cetacea: Monodontidae), Mol. Ecol., 1997, vol. 6, pp. 1033–1046.
4. Brown Gladden, J.G., Ferguson, M.M., Friesen, M.K., and Clayton, J.W., Population structure of North American beluga whales (Delphinapterus leucas) based on nuclear DNA microsatellite variation and contrasted with the population structure revealed by mitochondrial DNA variation, Mol. Ecol., 1999, vol. 8, pp. 347–363.
5. Chernetsky, A.D., Belkovich, V.M., and Krasnova, V.V., New data on population structure of white whales in the White Sea, in Marine Mammals of Holarctic. The Second International Conference, Moscow: KMK, 2002, pp. 279–282.