Higuchi and Drubulis, "Complexation of Organic Substances in Aqueous Solution by Hydroxyaromatic Acids and Their Salts, Relative Contributions of Several Factors to the Overall Effect,", 1961

Higuchi and Drubulis, "Complexation of Organic Substances in Aqueous Solution by Hydroxyaromatic Acids and Their Salts, Relative Contributions of Several Factors to the Overall Effect,", 1961, Box: 10, Folder: 74. Personal papers of Takeru Higuchi, PP 359. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/124498 Accessed December 25, 2025.