The Complexity of the Word-Problem for Finite Matrix Rings (with Cs. Szabó)
Proceedings of the American Mathematical Society 132 (2004), 3689-3695
The Complexity of Checking Identities for Finite Matrix Rings (with Cs. Szabó)
Algebra Universalis 51 (2004), 439-445
The Membership Problem in Finite Flat Hypergraph Algebras (with G. Kun)
International Journal of Algebra and Computation, 17 (2007), 449-459
The Identity Checking Problem in Finite Rings (with Cs. Szabó)
manuscript.
Checking Identities in 0-simple Semigroups (in Russian)
(with M. Volkov and S. Pletseva)
Journal of Ural State University, 43 (2006), 72-103
Azonosságok 0-egyszerű félcsoportokban (in Hungarian)
Matematikai Lapok, Új sorozat 13 (2006-2007/2), 54-75.