Naum Mihailovitch Jansy letters and notes, 1950, 1957, 1962, 1967, 1970, 1977, Box: 1, Folder: 4. Personal papers of Roy D. Laird, PP 507. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/126324 Accessed January 13, 2025.