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Communicated by G. Lallement
This research was supported, in part, by NSERC grant A4044.
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Petrich, M., Reilly, N.R. Certain rees matrix semigroups with universal properties. Semigroup Forum 22, 101–118 (1981). https://doi.org/10.1007/BF02572790
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DOI: https://doi.org/10.1007/BF02572790