Typescripts, 1980-1981 (from envelope labeled "tube foil discard 6-11-81": "Wave bending and deflection in circular troughs…"), with drawings, Box: 10, Folder: 6. Russell Randolph Hays papers, RH MS 564. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/278265 Accessed May 05, 2024.