William Frederick Denning (Polish Wikipedia)

Analysis of information sources in references of the Wikipedia article "William Frederick Denning" in Polish language version.

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1books.google.com

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books.google.com

DENNING, William F.. „Who's Who”. vol. 59, s. 470, 1907. (ang.).

harvard.edu

adsabs.harvard.edu

Obituary Notice: Denning, William Frederick. „Monthly Notices of the Royal Astronomical Society”. vol. 92, s. 248-250, luty 1932. (ang.).