LINS, Sóstenes. A New Application for Room Squares: Tournaments with Internal Referees. CUBO, A Mathematical Journal, [S. l.], v. 5, n. 3, p. 167–175, 2003. Disponível em: https://cubo.ufro.cl/index.php/cubo/article/view/1671. Acesso em: 12 oct. 2025.