▲▼ ▶Aristoteles, De Caelo. Vgl. I, 6 (274a19.2); I, 7 (275b 22-24); I, 12 (283a 7-9.1).
Aristotle, De Caelo. Cf. I, 6 (274a19.2); I, 7 (275b 22-24); I, 12 (283a 7-9.1).