Issue No.07 - July (1968 vol.17)
K.A. Foster , Sylvania Electric Products, Inc.
The paper by Mine and Kogal appears to have some unstated assumptions and inconsistencies which affect the validity of their claim to have presented "an effective method of logical design for fail-safe systems."
K.A. Foster, "Comments on "Basic Properties and a Construction Method for Fail-Safe Logical Systems"", IEEE Transactions on Computers, vol.17, no. 7, pp. 702, July 1968, doi:10.1109/TC.1968.227411