Arthur I. Rubin. Analog/hybrid: what it was, what it is, what it may be. In American Federation of Information Processing Societies: Proceedings of the AFIPS '70 Fall Joint Computer Conference, November 17-19, 1970, Houston, Texas, USA. Volume 37 of AFIPS Conference Proceedings, pages 641-652, AFIPS / ACM, 1970. [doi]
Abstract is missing.