Higuchi et. al, "Drug delivery from catalysed erodible polymeric matrices of poly (ortho ester)s,", 1984

Higuchi et. al, "Drug delivery from catalysed erodible polymeric matrices of poly (ortho ester)s,", 1984, Box: 10, Folder: 97. Personal papers of Takeru Higuchi, PP 359. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/124521 Accessed December 25, 2025.