Labinsky, Andriy, and Galina Labinska. “Influence of Physical Motor Activity on the Level of Catecholamine Secretion”. Journal of Education, Health and Sport 7, no. 4 (April 25, 2017): 1013–1020. Accessed November 1, 2024. https://apcz.umk.pl/JEHS/article/view/7719.