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Harmonische Potentialkurve. Harmonische Potentialkurve de Leyo CommonsHelper lmartin lmartin original upload log page de HOPotetialkurve Lmartin bytes no Potentialkurve erstellt von lmartin public domain Lmartin bytes no Potentialkurve erstellt von lmartin public domain Lmartin bytes no Potentialkurve erstellt