Regiomontanus

[1982] An Analysis of the Solar Observations of Regiomontanus and Walther ; R. R. Newton ; Quarterly Journal of the Royal Astronomical Society 23 (1982) p. 67 [lien]
[1998] Eclipse observations made by Regiomontanus and Walther. ; J. M. Steele ; F. R. Stephenson ; Journal for the History of Astronomy 29 (1998) p. 331 [lien]