Heffner, Rickye, Biomed, The Central Auditory System in Ungulates, September 1, 1981-June 30, 1982, Box: 42, Folder: 19. University of Kansas Schiefelbusch Institute for Life Span Studies records, RG 35. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/454043 Accessed July 20, 2025.