Олійник, Михайло, and Едуард Дорошенко. 2017. “Pedagogical Characteristics of the Systems for Assessing the Technical and Tactical Skills of Qualified Volleyball Players”. Slobozhanskyi Herald of Science and Sport, no. 6(62) (December):69-73. https://doi.org/10.15391/snsv.2017-6.014.