Sollgruber, Eva. “Oswald Mathias Ungers and the Concept of the Open City: Grünzug Süd and the Beginnings of Ungers’ Urban Thinking”. Histories of Postwar Architecture 6, no. 12 (January 1, 2023): 128–141. Accessed November 7, 2024. https://hpa.unibo.it/article/view/18077.