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Literatur
Alexander Classen, A. Fischer, F. Rüsberg, J. Byko, B. Bavink, J. Koppel, W. Roth, B. Rassow, F. Schmidt, C. Graebe, O. Ruff, Otto Runk, Paul Niggli, Erwin Ott, Erich Stock, Paul WaldenVolume:
59
Year:
1920
Language:
german
Pages:
4
DOI:
10.1007/bf01362641
File:
PDF, 238 KB
german, 1920