Pilis, K., Stec, K., Witkowski, Z., Stanula, A., Gabrys, T., & Mikołajec, K. (2018). WORKLOADS OF YOUNG SOCCER PLAYERS. SOCIETY. INTEGRATION. EDUCATION. Proceedings of the International Scientific Conference, 4, 199-210. https://doi.org/10.17770/sie2018vol1.3092