Higuchi et. al, "Investigation of Drug Release from Solids. I. Some Factors Influencing the Dissolution Rate,", 1954, Box: 10, Folder: 182. Personal papers of Takeru Higuchi, PP 359. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/124606 Accessed June 26, 2024.