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Die vorliegende Arbeit ist im "Dunstkreis" des IPSENProjektes entstanden und wre ohne die vielfaltigen Anregungen aus diesem Kontext nicht denkbar gewesen. Besonderer Dank gilt deshalb Prof. Dr. Ing. M. Nagl, dem Leiter des IPSENProjekts und dem geistigen Vater des Urahns von PROGRESS, fr die Vergabe eines so span nenden Dissertationsthemas, fr die Mglichkeit zur freien Entfaltung im Rahmen des IPSENProjekts und fr seinen vehementen Einspruch gegen viele Versuche, die Spra che PROGRESS allein aus Effizienzgriinden zu vereinfachen. Ferner danke ich dem Zweitgutachter, Prof. Dr. H. J. Schneider, der die Mhe nicht gescheut hat, fr diese doch etwas umfangreich geratene Arbeit ein Gutachten zu erstellen. Mein Dank gilt weiterhin allen jetzigen und ehemaligen Kollegen und Diploman den im IPSENProjekt, die in welcher Weise auch immer zum Gelingen meiner Ar beit beigetragen haben. Besonderen Dank schulde ich hier den IPSENOpas Gregor Engels und Wilhelm Schfer fr ihre Verdienste um das "Graph Grarnmar Engineering", meinem Landsmann Claus Lewerentz fr die Gelegenheit zu vielen fruchtbaren "Zwischen Tr und Angel"Gesprchen in unserer gemeinsamen Muttersprache, meinem WGGenossen und Arbeitskollegen Bernhard Westfechtel, dem welt besten PROGRESSProgrammierer, fr seine Diskussionsbereitschaft in allen Lebenslagen (beim Frhstck, Absplen, . . .
⚠️ WARNING (California Proposition 65):
This product may contain chemicals known to the State of California to cause cancer,
birth defects, or other reproductive harm.
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