sandsymposium Alfter 52t of sand Alfter 2011
stonesymposium Cairo 77t of marble Cairo 2009
dual Künstlerforum Bonn Bonn 2011
sculpture exhibition "21. Rhein-Erft Kunsttage" Cologne 2009
matter of form art center Hardtberg Bonn 2009
tra le rige sketch of a sculpture for a district court building in Sicily 2009
alignment sketch of a sculpture for the Raddison Blue at Oslo airport 2010
workshop in stone faculty of fine arts Cairo 2010