GIGLIO, Sérgio Settani; RUBIO, Kátia. Professional football: football market and athletes freedom to voice their opinions towards the structure . Brazilian journal of physical education and sport, São Paulo, Brasil, v. 27, n. 3, p. 387–400, 2013. DOI: 10.1590/S1807-55092013000300006. Disponível em: https://revistas.usp.br/rbefe/article/view/63110.. Acesso em: 17 jul. 2024.