CONSTANTINESCU, M. The Specifics of the Sport Product and Their Implications within the Marketing Activity. International Journal of Economic Practices and Theories, [S. l.], v. 1, n. 2, p. 71-76, 2011. Disponível em: http://ijept.eu/index.php/ijept/article/view/11. Acesso em: 15 jun. 2026.