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References
- ↑ Herbert von Denffer at the Mathematics Genealogy Project
- 1 2 3 4 Humboldt University of Berlin Archive File: HU/UA Phil. Fak. 769
- ↑ "TICOM I-58 Interrogation of Dr Otto Buggisch of OKW/Chi 8th August 1945" (PDF). TICOM. p. 9. Retrieved 29 January 2018.
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