CATES, L. . A Note on Two Modal Propositions of Burleigh. Acta Philosophica, [S. l.], v. 8, n. 1, p. 81–86, 1999. DOI: 10.17421/1121_2179_1999_08_01_Cates. Disponível em: https://www.actaphilosophica.it/article/view/4188. Acesso em: 26 feb. 2024.