Issue No.02 - February (1969 vol.18)
W.J. Karplus , University of California
This paper constitutes a description of a potentially interesting class of analog-digital computing systems. Unfortunately, much of the discussion is devoted to nomenclature and to general comments which are too vague to permit a meaningful evaluation of the approach.
W.J. Karplus, "R69-4 Quasi-Analogue Discrete Simulating Mediums", IEEE Transactions on Computers, vol.18, no. 2, pp. 204, February 1969, doi:10.1109/T-C.1969.222627