@misc{Szymanek-Pilarczyk_Marta_The_2021, author={Szymanek-Pilarczyk, Marta}, type={article}, publisher={Jan Długosz University in Czestochowa}, title={The effects of supplementary plyometric training on the development of selected motor skills of young football players from Akademia Raków Częstochowa football club}, address={Częstochowa}, year={2021}, language={eng}, }