An Experimental Investigation of a Mixed-Font Print Recognition System. - C. N. Liu; Glenmore L. Shelton Jr. (IEEE Trans. Electron. Comput., 1966)

Self-corrective character recognition system. - George Nagy; Glen L. Shelton Jr. (IEEE Trans. Inf. Theory, 1966)

An Interactive System for Reading Unformatted Printed Text. - Robert N. Ascher; George M. Koppelman; Martha J. Miller; George Nagy; Glenmore L. Shelton Jr. (IEEE Trans. Computers, 1971)