Non-Microwave Assocs. project status reports - Sperry - "Development of Broadband Bends, Twists and Corners", 1950, Box: 19, Folder: 22. Records of Microwave Associates, RH MS 601. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/283752 Accessed May 18, 2024.