KUGLER, Tamar; SZIDAROVSZKY, Ferenc. An Inter-Group Conflict and its Relation to Oligopoly Theory. CUBO, A Mathematical Journal, [S. l.], v. 11, n. 2, p. 127–138, 2009. Disponível em: https://cubo.ufro.cl/index.php/cubo/article/view/1475. Acesso em: 13 oct. 2025.