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Authors: Fritz Nieden

Published in Sitzungsberichte der Gesellschaft Naturforschender Freunde zu Berlin, in 1912, in volume 1912, pages 186-214

Created: 2014-06-03, modified: 2014-06-03

Authors: Theodor Vogt

Published in Sitzungsberichte der Gesellschaft Naturforschender Freunde zu Berlin, in 1912, in volume 1912, pages 355-359

Created: 2014-06-03, modified: 2014-06-03