1. Abramson, N.I., Rodchenkova, E.N., and Kostygov, A.Yu., Genetic variation and phylogeography of the bank vole (Clethrionomys glareolus, Arvicolinae, Rodentia) in Russia with special reference to the introgression of the mtDNA of a closely related species, red-backed vole (C. rutilus), Genetika, 2009, vol. 45, no. 5, pp. 610–623.
2. Borodin, A.V., Davydova, Yu.A., Berdyugin, K.I., Kshnyasev, I.A., and Fominykh, M.A, Natural hybrid of the northern red-backed vole (Myodes rutilus Pallas, 1779) and the bank vole (M. glareolus Schreber, 1780) in the Middle Urals: morphology and ecological determinism, in Mater.konf. “Tselostnost’ vida u mlekopitayushchikh: izoliruyushchie bar’ery i gibridizatsiya” 12–17 maya 2010 g. Petergof (Proc. Conf. “Species Integrity in Mammals: Insulating Barriers and Hybridization,” May 12–17, 2010, Peterhof), Moscow: KMK, 2010, p. 19.
3. Fitch, W.T. and Hauser, M.D, Vocal production in nonhuman primates-acoustics, physiology, and functional constraints on honest advertisement, Am. J. Primatol., 1995, vol. 37, pp. 191–219.
4. Frank, F., Twittering—a voice mutation in Microtus, Heredity, 1967, vol. 22, no. 4, pp. 607–610.
5. Gromov, I.M. and Erbaeva, M.A., Mlekopitayushchie fauny Rossii i sopredel’nykh territorii. Zaitseobraznye i gryzuny (Mammals of Russia and Adjacent Countries: Lagomorphs and Rodents), St. Petersburg: ZIN RAN, 1995.