Free Products of Finite Groups
and Groups of Finitely Automatic Permutations
Proceedings of the Steklov Institute of Mathematics Vol.231 (2000) 308-315.
Free Group of Infinite Unitriangular Matrices (with V.Sushchansky)
Mathematical Notes Vol.67 N.3 (2000) 320-324.
Free Products of $C_2$ as Groups of Finitely Automatic Permutations
Voprosy Algebry Vol.14 (1999) 158-165.