Osipov, A. Y., Potop, V., Nagovitsyn, R. S., Zemba, E. A., Knyazev, A. P., Orlova, I. I., Ratmanskaya, T. I., & Iermakov, S. S. (2020). Indicators of physical activity and fitness of male students at Russian universities. Physical Education of Students, 24(1), 40–46. https://doi.org/10.15561/20755279.2020.0105