Paul ten Bruggencate
Paul ten Bruggencate (24 February 1901 – 14 September 1961) was a German astronomer and astrophysicist. Provided by Wikipedia
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by Bruggencate, P. ten, Freundlich, E. F., Grotrian, W., Kienle, H.
Published 1934
Published 1934
Springer Berlin Heidelberg