Search results
Lobachevskii Journal of Mathematics > 2017 > 38 > 4 > 664-669
Cybernetics and Systems Analysis > 2015 > 51 > 4 > 506-513
Theoretical Computer Science > 2011 > 412 > 4-5 > 448-457
Semigroup Forum > 2011 > 82 > 1 > 1-9
Semigroup Forum > 2010 > 81 > 2 > 335-343
Theoretical Computer Science > 2003 > 299 > 1-3 > 743-749