Atyasheva, Tatyana, Andrey Malenyov, Roman Gorelov, Anastasiya Klyonina, and Andrey Bakiev. 2016. “Age Differences in the Properties of Viperous Snake Venom of the Volga River Basin”. Biological Communications, no. 3 (September), 15–19. https://doi.org/10.21638/11701/spbu03.2016.303.