Shilo, A. V., Lomako, V. V., & Babijchuk, G. A. (2005). Change in heart activity of rats under artificial hibernation. Problems of Cryobiology and Cryomedicine, 15(3), 509–510. Retrieved from http://cryo.org.ua/journal/index.php/probl-cryobiol-cryomed/article/view/1175