Ralph Elmer Wilson (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Ralph Elmer Wilson" in English language version.

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doi.org

Campbell, W. W. (June 1913), "Recent changes in Lick Observatory appointments", Publications of the Astronomical Society of the Pacific, 25 (148): 166–169, Bibcode:1913PASP...25..166C, doi:10.1086/122225, JSTOR 40710298.

harvard.edu

ui.adsabs.harvard.edu

Campbell, W. W. (June 1913), "Recent changes in Lick Observatory appointments", Publications of the Astronomical Society of the Pacific, 25 (148): 166–169, Bibcode:1913PASP...25..166C, doi:10.1086/122225, JSTOR 40710298.

jstor.org

Campbell, W. W. (June 1913), "Recent changes in Lick Observatory appointments", Publications of the Astronomical Society of the Pacific, 25 (148): 166–169, Bibcode:1913PASP...25..166C, doi:10.1086/122225, JSTOR 40710298.

nasonline.org

Joy, Alfred H. (1962), Ralph Elmer Wilson, 1886–1960, A Biographical Memoir (PDF), National Academy of Sciences, retrieved 2022-01-06.