Сутула, Василь, Лариса Луценко, Андрій Жадан, and Анастасія Сутула. 2018. “Physical Fitness As One of the Directions of the Historical Development of Physical Culture”. Slobozhanskyi Herald of Science and Sport, no. 4(66) (August):63-66. https://doi.org/10.15391/snsv.2018-4.010.