Augustyn, Krzysztof, Mateusz Zubik, and Paweł Bieniek. “THE MEANING OF A TRAINERS PROFESSION DEREGULATION IN NOWADAYS SPORT”. Ekonomia i Prawo. Economics and Law 13, no. 2 (June 30, 2014): 245–258. Accessed July 27, 2024. https://apcz.umk.pl/EiP/article/view/EiP.2014.018.