Babijchuk, V. G. 2007. “Age Peculiarities of Nitrogen Oxide Role in Animal Adaptation Mechanisms to Rhythmic Cold Effects Report 2. Content of NO Metabolism Final Products in Brain Cortex and Hypothalamus of Young and Aged Animals After Rhythmic Cold Effects”. Problems of Cryobiology and Cryomedicine 17 (1):25-37. https://cryo.org.ua/journal/index.php/probl-cryobiol-cryomed/article/view/528.