Ivashchenko, O., Khudolii, O., Prusik, K. and Giovanis, V. (2020) “Strength Abilities: Immediate and Delayed Training Effects of Orthogonal Modes of Strength Training in Boys Aged 8 Years”, Physical Education Theory and Methodology, 20(2), pp. 109–116. doi: 10.17309/tmfv.2020.2.07.