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Displaying 1-1 of 1 results for author "Geffcken, Heinrich."
Die lichtempfindliche Zelle als technisches Steuerorgan / von Heinrich Geffcken, Hans Richter, Joachim Winckelmann.
- Text
- Berlin-Tempelhof : Deutsch-literarisches Institut J. Schneider, 1933.
- 1933
- 1 Item
Item details Format Call Number Item Location Text PGO (Geffcken, H. Lichtempfindliche Zelle als technisches Steuerorgan) 1933 Offsite
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