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© 1986 American Institute of Physics.
1986
American Institute of Physics
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Owen Gingerich, Dieter B. Herrmann, Joseph Ashbrook, Steven J. Dick; Astrophysics and Twentieth‐Century Astronomy to 1950 Volume 4, Part A, of the General History of Astronomy and The History of Astronomy from Herschel to Hertzsprung and The Astronomical Scrapbook: Skywatchers, Pioneers, and Seekers in Astronomy. Physics Today 1 April 1986; 39 (4): 59–60. https://doi.org/10.1063/1.2814973
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