HERNÁNDEZ, José. The Liberalisms of José María Vigil and Antonio Caso, and the Direct Realism. Tópicos, Revista de Filosofía, [S. l.], v. 22, n. 1, p. 17–34, 2013. DOI: 10.21555/top.v22i1.301. Disponível em: https://revistas.up.edu.mx/topicos/article/view/301. Acesso em: 9 jul. 2026.