RADDER, Hans. The world observed/the world conceived in vogelvlucht. Krisis | Journal for Contemporary Philosophy, [S. l.], v. 27, n. 1, p. 67–70, 2007. DOI: 10.1347/kris.8.1.67. Disponível em: https://krisis.eu/article/view/39247. Acesso em: 18 oct. 2025.