Tolong jelaskan mengenai Regiomontanus and Calendar Reform dari Regiomontanus dalam bahasa melayu

Polybiblio: Regiomontanus, Johannes/Santbech, Daniel, ed. De triangulis planis et sphaericis libri. Basel Henrich Petri & Petrus Perna 1561

Joannes Regiomontanus: Calendarium, Venedig 1485, Digitalisat

Beitrag bei „Astronomie in Nürnberg“

Digitalisierte Werke von Regiomontanus — SICD der Universitäten von Strasbourg

Online Galleries, History of Science Collections, University of Oklahoma Libraries High resolution images of works by and/or portraits of Regiomontanus in .jpg and .tiff format.

Regiomontanus, Joannes, 1436-1476. Calendarium. Venice, Bernhard Maler Pictor, Erhard Ratdolt, Peter Löslein, 1476. [32] leaves. woodcuts: border, diagrs. (1 movable, 1 with brass pointer) 29.6 cm. (4to). From the Lessing J. Rosenwald Collection in the Rare Book and Special Collections Division at the Library of Congress

Doctissimi viri et mathematicarum disciplinarum eximii professoris Ioannis de Regio Monte De triangvlis omnímodis libri qvinqve From the Rare Book and Special Collection Division at the Library of Congress

Regiomontanus' Defensio Theonis digital edition (scans and transcription)