Texas Conference on Our Environmental Crisis, organized by UTSOA, includes exhibit Development Plan for Free and Hanseatic City -State of Hamburg, Germany by Hugo, 1965

Texas Conference on Our Environmental Crisis, organized by UTSOA, includes exhibit Development Plan for Free and Hanseatic City -State of Hamburg, Germany by Hugo, 1965, Box: HUGO013, Folder: 13. Hugo Leipziger-Pearce collection, HUGO. Alexander Architectural Archives. https://archives.lib.utexas.edu/repositories/2/archival_objects/35622 Accessed September 26, 2026.