Literature Cited
A. C. Fleck, “On the strong connectedness of the direct product,” IEEE Trans. Electron. Comput.,16, no. 1, 90, 1967.
M. A. Spivak, “A treatment of automaton theory by relation-theoretic methods,” collection: Problems of Cybernetics [in Russian], no. 12, izd-vo Nauka, Moscow, 69–97, 1964.
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Translated from Kibernetika, Vol. 5, No. 2, pp. 97–98, March–April, 1969.
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Spivak, M.A. On a note by A. C. Fleck. Cybern Syst Anal 5, 237 (1969). https://doi.org/10.1007/BF01071096
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DOI: https://doi.org/10.1007/BF01071096