@book{ 0-1096874202, title = {Bildhauerzeichnungen des Wilhelm-Lehmbruck-Museums Duisburg: Wilhelm-Lehmbruck-Museum Duisburg, 5. September - 27. Oktober 1991}, author = {Heidt Heller, Renate and Brockhaus, Christoph}, editor = {Heidt Heller, Renate}, editor = {Brockhaus, Christoph}, address = {Duisburg}, publisher = {Stadt Duisburg}, year = {1991}, language = {German}, url = {https://katalog.skd.museum/Record/0-1096874202} }