トゥースィーの対円
Di Bono, Mario (1995). “Copernicus, Amico, Fracastoro and Tusi's Device: Observations on the Use and Transmission of a Model”. Journal for the History of Astronomy 26: 133–154. Bibcode: 1995JHA....26..133D. doi:10.1177/002182869502600203.
Kennedy, E. S. (1966). “Late Medieval Planetary Theory”. Isis 57 (3): 365–378. doi:10.1086/350144.
Kren, Claudia (1971). “The Rolling Device of Naṣir al-Dīn al-Ṭūsī in the De spera of Nicole Oresme”. Isis 62 (4): 490–498. doi:10.1086/350791.
Ragep, F. J.