Inge Müller (27 April 2006). "art spaces II (exhibition catalog)"(PDF). LEO (Lünser Experience Organization). Archived from the original(PDF) on 19 July 2011. Retrieved 12 September 2010. (in German)
Inge Müller (27 April 2006). "art spaces II (exhibition catalog)"(PDF). LEO (Lünser Experience Organization). Archived from the original(PDF) on 19 July 2011. Retrieved 12 September 2010. (in German)