STOSIK, Aneta; LEŚNIEWSKA, Aleksandra. Ku koopetycji w sporcie. Wyzwania dla rynku o wysokiej konkurencji = Towards coopetition in sport. Challenges for the market of high competition. Journal of Education, Health and Sport, [S. l.], v. 6, n. 9, p. 975–982, 2016. Disponível em: https://apcz.umk.pl/JEHS/article/view/4090. Acesso em: 28 jun. 2025.