High speed optical computers and quantum transition memory devices. - Lewis C. Clapp (IRE-AIEE-ACM Computer Conference (Western), 1961)

Information retrieval II: The chaining technique for associative sentence retrieval. - Lewis C. Clapp (ACM National Conference, 1962)

A computer aid for symbolic mathematics. - Lewis C. Clapp; Richard Y. Kain (AFIPS Fall Joint Computing Conference, 1963)

A syntax-directed approach to automated aids for symbolic mathematics. - Lewis C. Clapp (SYMSAC, 1966)

Symbolic factoring of polynomials in several variables. - Dale E. Jordan; Lewis C. Clapp; Richard Y. Kain (Commun. ACM, 1966)