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* ''Kremer, RichardR. L.:'' Bernhard Walther´s Astronomical Observations. Journal for the History of Astronomy 11 (3/1980) S.174-191
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* ''Kremer,RichardR. L.:'' Walther´s Solar Observations: A reply to R. R. Newton. Quarterly Journal of the Royal Astronomical Society 24 (1983), S. 36-47
* [[Ньютон, Роберт Рассел| Newton R. R. Newton]], An analysis of the solar observations of Regiomontanus and Walther. Quarterly Journal of the Royal Astronomical Society 23 (1982), S. 67-93
* ''Steele,JohnJ. Michael;M.'', ''Stephenson,FrancisF. Richard:R.'' Eclipse Observations by Regiomontanus and Walther. Journal for the history of astronomy 29 (4/1998), S. 331-344
