http://en.wikipedia.org/wiki/G%C3%BCnter_Brushttp://www.youtube.com/watch?v=8kiAG1M67Io&http://www.artcyclopedia.com/artists/brus_gunter.htmlhttp://www.freewebs.com/vienna-actionists/gunterbrus.htmhttp://www.slought.org/content/11316/