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]