Celestial Recoil chapter 2 - 5 ("Tale of the Physicist, the Conductor's Story"), October 23, 1928 - July 21, 1929, Box: 1, Folder: A3. Cordwainer Smith papers, MS 196. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/550239 Accessed June 02, 2024.