J. M. S. Sim\~oes Pereira

• J. M. S. Sim\~oes Pereira. On the Boolean matrix equation M' = \vee_{i=1} M^i. Journal of the ACM, 12(3):376-382, July 1965. References and Citations.

• J. M. S. Sim\~oes Pereira. Corrigendum: ``On the Boolean matrix equation M' = \vee_{i=1} M^i''. Journal of the ACM, 14(2):419-420, April 1967. References.

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