@book{ 0-025091425, title = {Erich Heckel: 1883 - 1970 ; Gemälde, Aquarelle, Zeichnungen und Graphik ; [Museum Folkwang Essen, 18. September - 20. November 1983, Haus der Kunst München, 10. Dezember 1983 - 12. Februar 1984]}, author = {Felix, Zdenek and Heckel, Erich and Dube-Heynig, Annemarie}, editor = {Felix, Zdenek}, editor = {Heckel, Erich}, editor = {Dube-Heynig, Annemarie}, address = {München}, publisher = {Prestel}, year = {1983}, isbn = {3791306464}, language = {German}, url = {https://katalog.gfzk.de/Record/0-025091425} }