Pérez Otero, Manuel. “Reasoning about Non-Actual Possibilities. Problems With the Douven-Putnam Model-Theoretic Argument Against Metaphysical Realism”. Crítica. Revista Hispanoamericana de Filosofía 34, no. 102 (January 8, 2019): 29–45. Accessed April 19, 2025. https://critica.filosoficas.unam.mx/index.php/critica/article/view/978.