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المساهمون: Adler, Hans [Gestaltung], Fröhlich, Josef [Interviewte/r], Happy, Josef [interviewee/r]
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المساهمون: Fröhlich, Josef [Interviewte/r], Happy, Josef [interviewee/r], Pfitzner, Helmut [Gestaltung]
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المساهمون: Fröhlich, Josef [Interviewte/r], Happy, Josef [interviewee/r], Swietly, Ernst [Gestaltung]