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  "Hajo Ortil" OR "Ortil Hajo" OR "Hans-Joachim Oertel" OR "Oertel Hans-Joachim" -1954 -Helmholtz -Wikipedia - Google-Suche

  http://www.google.at/search?num=100&hl=de&safe=off&client=opera&rls=de&q=%22Hajo+Ortil%22+OR+%22Ortil+Hajo%22+OR+%22Hans-Joachim

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  "Hajo Ortil" OR "Ortil Hajo" OR "Hans-Joachim Oertel" OR "Oertel Hans-Joachim" -1954 -Helmholtz -Wikipedia - Google-Suche

  http://www.google.at/search?num=100&hl=de&safe=off&client=opera&rls=de&q=%22Hajo+Ortil%22+OR+%22Ortil+Hajo%22+OR+%22Hans-Joachim+Oertel%22+OR+%22Oertel+Hans-Joachim%22+-1954+-Helmholtz+-Wikipedia&btnG=Suche&meta=

  Keine Beschreibung vorhanden.

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