Gordon, D. E. Oskar Kokoschka and the visionary tradition: Donald E. Gordon. The turn of the century : German literature and art, 1890 - 1915.(1983).

Gordon, Donald E. "Oskar Kokoschka and the Visionary Tradition: Donald E. Gordon." The Turn of the Century : German Literature and Art, 1890 - 1915.(1983) .

Gordon, Donald E. "Oskar Kokoschka and the Visionary Tradition: Donald E. Gordon." The Turn of the Century : German Literature and Art, 1890 - 1915.(1983), .