STOSIK, A.; LEŚNIEWSKA, A. Coopetition between organizations in the sports services market. Quality in Sport, [S. l.], v. 4, n. 1, p. 18–26, 2018. DOI: 10.12775/QS.2018.002. Disponível em: https://apcz.umk.pl/QS/article/view/QS.2018.002. Acesso em: 1 feb. 2023.