ZUKOW, Walery, FLYUNT, Igor-Severyn, PONOMARENKO, Ruslan, RYBAK, Nadiya, FIL’, Vitaliy, KOVALCHUK, Halyna, SARANCHA, Serhiy and NAHURNA, Yaryna. Polivariant change of step-test under the influence of natural adaptogens and their accompaniments. Pedagogy and Psychology of Sport. Online. 27 April 2020. Vol. 6, no. 2, pp. 74-84. [Accessed 22 July 2024]. DOI 10.12775/PPS.2020.06.02.007.