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[1992] Kepler's Resolution of Individual Planetary Motion ; A. E. L. Davis ; Centaurus 35 (1992) p. 97 [lien]
[1997] On the shapes of Newton's revolving orbits ; D. Lynden-Bell ; R. M. Lynden-Bell ; Notes and Records 51 (1997) p. 195 [lien]
[2004] A route to the ancient discovery of non-uniform planetary motion ; Alexander Jones ; Journal for the History of Astronomy 35 (2004) p. 375 [lien]