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EllipseDef. Skizze zur geometrischen Definition der Ellipse gemeinfrei selbst erstellt de Wfstb de Wfstb Original upload log page de EllipseDef Hauix bytes no version Wfstb bytes no selbst erstellt Wfstb bytes no selbst erstellt Wfstb bytes no zur geometrischen Definition der Ellipse gemeinfrei selbst erstellt