Dee, Roger. "Holdup at Twin Palms." Black Book Detective, vol. XXIX, no. 3, Winter, Winter 1953, Box: 2, Folder: 80. Harry Altshuler papers, MS 251. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/247797 Accessed April 28, 2024.