Higuchi and Bogardus, "Kinetics and Mechanism of Hydrolysis of Labile Quaternary Ammonium Derivatives of Tertiary Amines,", 1982, Box: 10, Folder: 206. Personal papers of Takeru Higuchi, PP 359. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/124630 Accessed June 02, 2024.