Hapkemeyer, A. On the principle of dialog in Jochen Gerz's works for public spaces: Andreas Hapkemeyer. Jochen Gerz - Res publica : the public work 1968 - 1999.(1999).
Chicago Style (17. basım) AtıfHapkemeyer, Andreas. "On the Principle of Dialog in Jochen Gerz's Works for Public Spaces: Andreas Hapkemeyer." Jochen Gerz - Res Publica : The Public Work 1968 - 1999.(1999) .
MLA (8th ed.) AtıfHapkemeyer, Andreas. "On the Principle of Dialog in Jochen Gerz's Works for Public Spaces: Andreas Hapkemeyer." Jochen Gerz - Res Publica : The Public Work 1968 - 1999.(1999), .
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