VANNEY, C. E. Realism, idealism and logicism. An analysis from Leonardo Polo’s theory of knowledge. Acta Philosophica, [S. l.], v. 18, n. 2, p. 335–360, 2009. Disponível em: https://www.actaphilosophica.it/article/view/3965. Acesso em: 26 feb. 2024.