Higuchi et. al, "The Physics of Tablet Compression, IV. Relationship of Ejection, and Upper Lower Punch Forces during Compressional Process: Application of Measurements to Comparison of Tablet Lubricants,", 1954, Box: 11, Folder: 43. Personal papers of Takeru Higuchi, PP 359. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/124677 Accessed June 02, 2024.