SÁNCHEZ, Andrés Quero. About Being a Friend: Friendship and Metaphysics by Plato, Aristotle, Augustine and Albert the Great. Pensamiento. Revista de Investigación e Información Filosófica, Madrid, España, v. 66, n. 247, p. 5–33, 2014. Disponível em: https://revistas.comillas.edu/pensamiento/article/view/2275. Acesso em: 20 aug. 2026.