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φυσικό πρόσωπο
Karl Wilhelm Valentiner (22 February 1845 in Eckernförde – 1 April 1931) was a German astronomer.
Wikipedia contributors. "Karl Wilhelm Valentiner." Wikipedia, The Free Encyclopedia, 5/1/2024, 2:31:05 PM. Web. 5/16/2024, 4:49:05 PM.