Shilo, A. V., V. V. Lomako, and G. A. Babijchuk. “Change in Heart Activity of Rats under Artificial Hibernation”. Problems of Cryobiology and Cryomedicine 15, no. 3 (September 25, 2005): 509–510. Accessed December 6, 2022. http://cryo.org.ua/journal/index.php/probl-cryobiol-cryomed/article/view/1175.