1. LISTAR-Lincoln Information Storage & Associative Retrieval System, Spring Joint Computer Conference Proceedings, AFIPS Press, 313–322 (1970).
2. , Document Description and Representation, Chap. 6, Annual Review of Information Science and Technology, C. A. Cuadra. 5: 161 (1970).
3. , and , “AESOP: A Prototype for On-Line User Control of Organizational Data Storage, Retrieval, and Processing,” Proceedings, Fall Joint Computer Conference, 435–455 (1965).
4. Toward a viable classification scheme: Some theoretical considerations
5. “Utilization of On-Line Interactive Displays,” SDC No. SP-2575, 32 p. (22 August 1966).