Seweryniak, Tomasz, Aneta Stosik, Aleksandra Leśniewska, and Gabriel Łasiński. “COMPETENCES OF PROFESSIONAL VOLLEYBALL TEAM COACHES IN THE OPINION OF EXPERTS”. Journal of Positive Management 9, no. 2 (July 5, 2019): 18–33. Accessed July 18, 2024. https://apcz.umk.pl/JPM/article/view/JPM.2018.140.