Myron J. Mendelson, A. W. England. The SDS SIGMA 7: a real-time time-sharing computer. In American Federation of Information Processing Societies: Proceedings of the AFIPS '66 Fall Joint Computer Conference, November 7-10, 1966, San Francisco, California, USA. Volume 29 of AFIPS Conference Proceedings, pages 51-64, AFIPS / ACM / Spartan Books, Washington D.C., 1966. [doi]
Abstract is missing.