Matthias H. Risse and a friend Cem Kozcuer have an ongoing exhibition called Der Kollaborateur at Galerie61 in Bielefeld, Germany. The english title : ‘The Collaborator. An egocentric field study.’. Will be open January 21st – March 5th, 2011. Good time to visit Bielefeld and learn german! Installation photos at the galery’s webpage.