Poputnikov, D. M., E. V. Melenchuk, and V. N. Gurin. 2005. “Study of Participation of Central Neuromediator Mechanisms in Heart Rate Regulation under Hypothermia Development”. Problems of Cryobiology and Cryomedicine 15 (3):474-75. https://cryo.org.ua/journal/index.php/probl-cryobiol-cryomed/article/view/1165.