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1
by Bruhn, Christian
Published 1922
J.F. Bergmann-Verlag
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2
by Bruhn, Christian, Hofrath, Herbert, Korkhaus, Gustav
Published 1939
Springer Berlin Heidelberg
Other Authors: “...Bruhn, Christian...”
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3
by Bruhn, Christian, Gutowski, F., Gysi, A., Hauptmeyer, F.
Published 1926
Springer Berlin Heidelberg