Methuen, Charlotte (1996). "Maestlin's Teaching of Copernicus: The Evidence of His University Textbook and Disputations". Isis. 87 (2): 230–247. doi:10.1086/357482. JSTOR236062. S2CID144999540.
Methuen, Charlotte (March 2001). "Time Human or Time Divine? Theological Aspects in the Opposition to Gregorian Calendar Reform". Reformation & Renaissance Review. 3 (1): 36–50. doi:10.1558/rrr.v3i1.36. S2CID159708565.
McNutt, Jennifer Powell (September 2006). "Hesitant Steps: Acceptance of the Gregorian Calendar in Eighteenth-Century Geneva". Church History. 75 (3): 544–564. doi:10.1017/s0009640700098620. S2CID154764575.
Barker, Peter; Goldstein, Bernard R (2001). "Theological Foundations of Kepler's Astronomy". The University of Chicago Press on Behalf of the History of Science Society. 16: 88–113. Bibcode:2001Osir...16...88B.
Grafton, Anthony (1973). "Michael Maestlin's Account of Copernican Planetary Theory". Proceedings of the American Philosophical Society. 117 (6): 523–550. Bibcode:1973PAPhS.117..523G. JSTOR986463.
Grafton, Anthony (31 December 1973). "Michael Maestlin's Account of Copernican Planetary Theory". Proceedings of the American Philosophical Society. 117 (6): 523–550. Bibcode:1973PAPhS.117..523G. JSTOR986463.
Albers, Steven C. (March 1979). "Mutual Occultations of Planets: 1557 to 2230". Sky and Telescope. 57: 220. Bibcode:1979S&T....57..220A.
Burke-Gaffney, W. (1937). "Kepler and the Star of Bethlehem". Journal of the Royal Astronomical Society of Canada. 31: 417. Bibcode:1937JRASC..31..417B.
Methuen, Charlotte (1996). "Maestlin's Teaching of Copernicus: The Evidence of His University Textbook and Disputations". Isis. 87 (2): 230–247. doi:10.1086/357482. JSTOR236062. S2CID144999540.
Grafton, Anthony (1973). "Michael Maestlin's Account of Copernican Planetary Theory". Proceedings of the American Philosophical Society. 117 (6): 523–550. Bibcode:1973PAPhS.117..523G. JSTOR986463.
Grafton, Anthony (31 December 1973). "Michael Maestlin's Account of Copernican Planetary Theory". Proceedings of the American Philosophical Society. 117 (6): 523–550. Bibcode:1973PAPhS.117..523G. JSTOR986463.
Methuen, Charlotte (1996). "Maestlin's Teaching of Copernicus: The Evidence of His University Textbook and Disputations". Isis. 87 (2): 230–247. doi:10.1086/357482. JSTOR236062. S2CID144999540.
Methuen, Charlotte (March 2001). "Time Human or Time Divine? Theological Aspects in the Opposition to Gregorian Calendar Reform". Reformation & Renaissance Review. 3 (1): 36–50. doi:10.1558/rrr.v3i1.36. S2CID159708565.
McNutt, Jennifer Powell (September 2006). "Hesitant Steps: Acceptance of the Gregorian Calendar in Eighteenth-Century Geneva". Church History. 75 (3): 544–564. doi:10.1017/s0009640700098620. S2CID154764575.
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J J O'Connor and E F Robertson, The Golden ratio, 2001, The first known calculation of the golden ratio as a decimal was given in a letter written in 1597 by Michael Maestlin, at the University of Tübingen, to his former student Kepler. He gives "about 0.6180340" for the length of the longer segment of a line of length 1 divided in the golden ratio. The correct value is 0.61803398874989484821... The mystical feeling for the golden ratio was of course attractive to Kepler, as was its relation to the regular solids.History.mcs.st-andrews.ac.uk