Two step color shrinking algorithm for encoding of graphics. - Phillip L. Kelly; V. Ralph Algazi (ICASSP, 1984)

Progressive color block coding of bilevel scanned documents. - V. Ralph Algazi; R. R. R. Estes; Gary E. Ford; Phillip L. Kelly (ICASSP, 1990)

Compression of binary facsimile images by preprocessing and color shrinking. - V. Ralph Algazi; Phillip L. Kelly; Robert R. Estes Jr. (IEEE Trans. Commun., 1990)