Ératosthène

[1982] Eratosthenes' Geodesy Unraveled: Was There a High-Accuracy Hellenistic Astronomy? ; Dennis Rawlins ; ISIS 73 (1982) p. 259 [lien]
[1983] Eratosthenes' Ratio for the Obliquity of the Ecliptic ; David H. Fowler ; Dennis Rawlins ; ISIS 74 (1983) p. 556 [lien]
[2002] Eratosthenes, Hipparchus, and the obliquity of the ecliptic ; Alexander Jones ; Journal for the History of Astronomy 33 (2002) p. 15 [lien]
[2015] The Two Earths of Eratosthenes ; Christián Carlos Carman ; James Evans ; ISIS 106 (2015) p. 1 [lien]