Panina, Lyubov, Yuriy Petryshyn, Svitlana Kovalchuk, and Oleksiy Mysakovets. “Heart Rate Variability under Interval Hypoxic Trainingand Hemic Hypoxia”. Current Issues in Pharmacy and Medical Sciences 22, no. 3 (September 30, 2009): 17–21. Accessed June 7, 2025. https://czasopisma.umlub.pl/curipms/article/view/2792.