William L. Batchelor, Lucian J. Endicott Jr.. An experimental system to support a very high level user interface. In American Federation of Information Processing Societies: 1981 National Computer Conference, 4-7 May 1981, Chicago, Illinois, USA. Volume 50 of AFIPS Conference Proceedings, pages 389-392, AFIPS Press, 1981. [doi]
Abstract is missing.