Matzner, F., & Hécey, E. (2003). Bert Theis: Some works / edited by Florian Matzner in cooperation with Erna Hécey. Hatje Cantz Verlag.

Matzner, Florian, and Erna Hécey. Bert Theis: Some Works / Edited by Florian Matzner in Cooperation with Erna Hécey. Ostfildern-Ruit: Hatje Cantz Verlag, 2003.

Matzner, Florian, and Erna Hécey. Bert Theis: Some Works / Edited by Florian Matzner in Cooperation with Erna Hécey. Hatje Cantz Verlag, 2003.