1. ; “A Semiotic Framework for Information Science Leading to the Development of a Quantitative Measure of Information.” Information Utilities; Proceedings of the 37th ASIS Annual Meeting. Atlanta, 1974. Washington, DC: ASIS; 1974: Vol. 11.
2. ; The Mathematical Theory of Communication. Urbana, IL: The University of Illinois Press; 1949.
3. Understanding natural language
4. “Semantics and Quantification in Natural Language Question Answering.” Advances in Computers. Ed. New York: Academic; 1978: Vol. 17.
5. “On Signs, Information, and Information Measures.” Proceedings of Instrument Society of America, Philadelphia, 1970. Pittsburgh: I.S.A.; 1970: 543–548.