VILKAS, E. Some functional properties of the matrix game value. Lithuanian Mathematical Journal, [S. l.], v. 3, n. 1, p. 71–76, 1963. DOI: 10.15388/LMJ.1963.19407. Disponível em: https://journals.vu.lt./LMJ/article/view/19407. Acesso em: 26 apr. 2025.