Koppenhagen, U., & Mayr, E. W. (1996). The complexity of the equivalence problem for commutative semigroups.
Chicago Style (17th ed.) CitationKoppenhagen, Ulla, and Ernst W. Mayr. The Complexity of the Equivalence Problem for Commutative Semigroups. München, 1996.
MLA (9th ed.) CitationKoppenhagen, Ulla, and Ernst W. Mayr. The Complexity of the Equivalence Problem for Commutative Semigroups. 1996.
Warning: These citations may not always be 100% accurate.