Higuchi et. al, "Rate of Anaerobic Degradation of Ascorbic Acid in Aqueous Solution,", 1963, Box: 11, Folder: 73. Personal papers of Takeru Higuchi, PP 359. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/124707 Accessed January 02, 2025.