Piepiora, Paweł, Agnieszka Rauk-Kubacka, and Rafał Kubacki. “Sport Psychology in the Physical Culture Sciences. A Review”. Pedagogy and Psychology of Sport 7, no. 1 (February 7, 2021): 61–75. Accessed July 28, 2024. https://apcz.umk.pl/PPS/article/view/PPS.2021.07.01.003.