Chapter Mathäus, Klaus; (2010)
Die offiziellen Nürnberger Kalenderschreiber (/isis/citation/CBB001214069/)

Article Gingerich, Owen; (1982)
Notes on the Gregorian calendar reform (/isis/citation/CBB000018186/)

Article Grafton, Anthony; (1992)
The Attic calendar from Theodore Gaza to Joseph Scaliger (/isis/citation/CBB000054119/)

Book Shimony, Abner; (1998)
Tibaldo and the hole in the calendar. Illustrated by Jonathan Shimony (/isis/citation/CBB000076889/)

Article Botley, Paul; (2006)
Renaissance Scholarship and the Athenian Calendar (/isis/citation/CBB001031151/)

Chapter Saliba, George; (2008)
Embedding Scientific Ideas as a Mode of Science Transmission (/isis/citation/CBB001022263/)

Article Flood, John L.; (1992)
Ein Almanach auf das Jahr 1492, mit einer Übersicht über die Augsburger Kalenderproduktion des 15. Jahrhunderts (/isis/citation/CBB000044898/)

Article Moyer, Gordon; (1981)
The origins of the Julian Day System (/isis/citation/CBB000017756/)

Chapter Breugelmans, R.; Dekker, E.; (1989)
Adriaan Anthonisz and the Gregorian calendar (/isis/citation/CBB000035746/)

Book Turriano, Juanelo; (1990)
Breve discurso a su Majestad el Rey Católico en torno a la reducción del año y reforma del calendario, con la explicación de los instrumentos inventados para enseñar su uso en la práctica. Con una intruducción de García-Diego, José A. y un análisis del códice por González Aboin, José María, así como el manuscrito inédito, en su idioma original y traducción al castellano (/isis/citation/CBB000063970/)

Article Moyer, Gordon; (1982)
Luigi Lilio and the Gregorian reform of the calendar (/isis/citation/CBB000018125/)

Article Swerdlow, Noel M.; (1986)
The length of the year in the original proposal for the Gregorian calendar (/isis/citation/CBB000053905/)

Chapter Huttenbach, Henry R.; (1978)
Moscovy's calendar controversy of 1491-1492 (/isis/citation/CBB000021408/)

Article Fiocca, Alessandra; (1988)
Alcune opere inedite di Ludovico Ferrari (/isis/citation/CBB000040833/)

Article Bertele, Hans von; Blau, Ludwig; (1977)
Habermel's Universalkalender (/isis/citation/CBB000028581/)

Chapter Badolati, Ennio; (1990)
Luca Gaurico e la riforma gregoriana del calendario (/isis/citation/CBB000058191/)

Book Herbst Klaus-Dieter; (2020)
Biobibliographisches Handbuch der Kalendermacher (/isis/citation/CBB922351256/)

Article C. Philipp E. Nothaft; (2017)
A Reluctant Innovator: Graeco-Arabic Astronomy in the Computus of Magister Cunestabulus (1175) (/isis/citation/CBB468389204/)

Book Josef H. Biller; (2018)
Calendaria Bambergensia - Bamberger Einblattkalender des 15. bis 19. Jahrhunderts von der Inkunabelzeit bis zur Säkularisation (/isis/citation/CBB587078135/)

Book Simone Bartolini; (2018)
Il cielo in terra: Storia delle linee meridiane e degli strumenti astronomici di Egnazio Danti (/isis/citation/CBB263433192/)