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Keywords from Image Description:
Hans Heinrich Landolt . Hans Landolt Dezember in Zrich Mrz in DeutschWilmersdorf Berlin Deutschland Zeitschrift fr Physikalische Chemie Band von Heliogravre by Jtte Leipzig Scanned image processed and uploaded by Kuebi Armin Kbelbeck PDold DEFAULTSORT Landolt Hans Heinrich Hans Heinrich Landolt Zeitschrift fr Physikalische