Heffner, Henry, Behavioral Analysis of the role of the Auditory Cortex, KU# 4351-9, NS-12992-09, September 9, 1985-August 31, 1986, Box: 42, Folder: 8. 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/454032 Accessed May 18, 2025.