Additional Formats
"Low Dispersion Image Tube Spectra in the Red: 3C C 48, Ton 256, and an Infrared Star," by W. Kent Ford, Jr., and Vera C. Rubin, Sep. 14, 1965 [+ 2 photos]
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Gaseous spectra in vacuum tubes, under small dispersion and at low electric temperature; : including an appendix by Alexander S. Herschel
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