Karrar, R., Movement-Related Brain Potentials in Down Syndrome, KU# 4297-3, February 2, 1997, Box: 46, Folder: 28. 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/454199 Accessed May 17, 2025.