Higuchi et. al, "Studies on Pharmaceutical Powders and the State of Subdivision. III. An Evaluation of Pharmaceutical Dispensing Techniques Employed to Increase the Specific Surface Areas of Powders,", 1949

Higuchi et. al, "Studies on Pharmaceutical Powders and the State of Subdivision. III. An Evaluation of Pharmaceutical Dispensing Techniques Employed to Increase the Specific Surface Areas of Powders,", 1949, Box: 11, Folder: 117. Personal papers of Takeru Higuchi, PP 359. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/124751 Accessed December 24, 2025.