- Guillaume Watier:
On the Word Problem for Single Relation Monoids with an Unbordered Relator. Int. J. Algebra Comput. 7(6): 749-770 (1997) - Akihiro Yamamura
:
HNN Extensions of Inverse Semigroups and Applications. Int. J. Algebra Comput. 7(5): 605-624 (1997) - László Zádori:
Relational Sets and Categorical Equivalence of Algebras. Int. J. Algebra Comput. 7(5): 561-576 (1997)
