For citations:

Yermokhin M.V., Tabachishin V.G. An abnormally early hibernation ending of the Red-bellied toad (Bombina bombina) (Discoglossidae, Anura) in the populations of the Medveditsa river valley (Saratov region). Povolzhskiy Journal of Ecology. 2021;(1):89-96. (In Russ.) https://doi.org/10.35885/1684-7318-2021-1-89-96