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  Marshall Berman on Graffiti - YouTube

  https://www.youtube.com/watch?v=hTYBDzthTYU

  An excerpt from the NEW YORK: A DOCUMENTARY FILM by Ric Burns.

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  Google Scholar

  http://scholar.google.de/scholar?q=%22mathematischer+konstruktivismus%22&hl=en&lr=&btnG=Search

  Keine Beschreibung vorhanden.

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