Higuchi and Lachman, "Inhibition of Hydrolysis of Esters in Solution by Formation of Complexes. I. Stabilization of Benzocaine with Caffeine,", 1955

Higuchi and Lachman, "Inhibition of Hydrolysis of Esters in Solution by Formation of Complexes. I. Stabilization of Benzocaine with Caffeine,", 1955, Box: 10, Folder: 166. Personal papers of Takeru Higuchi, PP 359. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/124590 Accessed December 25, 2025.