PAKALUK, Michael. The Doctrine of Relations in Bertrand Russell's Principles of Mathematics. Tópicos, Revista de Filosofía, [S. l.], v. 2, n. 1, p. 153–182, 2013. DOI: 10.21555/top.v2i1.568. Disponível em: https://revistas.up.edu.mx/topicos/article/view/568. Acesso em: 29 mar. 2024.