Correspondence between Schaefer, Carl and Peter Ashlock, includes manuscripts and grant proposals, 1960-1972, 1975, 1977, 1985-1987, Box: 4, Folder: 106-107. Personal papers of Peter D. Ashlock, PP 515. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/395167 Accessed May 12, 2024.