RAÑA DAFONTE, C. Natura optima parens. La naturaleza en el siglo XII / Natura optima parens. Nature in the 12th Century. Revista Española de Filosofía Medieval, [S. l.], v. 16, p. 43–56, 2009. DOI: 10.21071/refime.v16i.6178. Disponível em: https://journals.uco.es/refime/article/view/6178. Acesso em: 2 feb. 2025.