Steps toward a model of linguistic performance: a preliminary sketch. - Robert M. Schwarcz (Mech. Transl. Comput. Linguistics, 1967)

A computational model of verbal understanding. - Robert F. Simmons; John F. Burger; Robert M. Schwarcz (AFIPS Fall Joint Computing Conference (1), 1968)

Towards a Computational Formalization of Natural Language Semantics. - Robert M. Schwarcz (COLING, 1969)

A deductive question-answerer for natural language inference. - Robert M. Schwarcz; John F. Burger; Robert F. Simmons (Commun. ACM, 1970)