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Artículo Wikipedia
Kreis Mogilno was one of many Kreise (counties) in the northern administrative district of Bromberg, in the Prussian province of Posen.
Artículo Wikipedia
Erich Rudolf Alexander Regener (12 November 1881 – 27 February 1955) was a German physicist known primarily for the design and construction of instruments to measure cosmic ray intensity at various al ...
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