système sexagésimal

[1939] Sketch of a History of the Sexagesimal System ; F. Thureau-Dangin ; Osiris 7 (1939) p. 95 [lien]
[1965] Eleven-Digit Regular Sexagesimals and Their Reciprocals ; Owen Gingerich ; Transactions of the American Philosophical Society 55 (1965) p. 3 [lien]
[1965] The sixty system of sumer ; A. Seidenberg ; Archive for history of exact sciences 2 (1965) p. 436 [lien]