Bibliography

1

John Rhodes: Monoids acting trees: elliptic and wreath products and the holonomy theorem for arbitrary Monoids. In Monids and Semigroups with application. World Sci. Publ. River Edge, NJ, 1991, p.371-389.

2

I. Reznikow, V. Sushchansky: Automaton transformation semigroups defined by Mealy automata with two states over $2$-element alphabets. Dopovidi NAN Ukraine, 2002, N2, p.52 - 57. (in Russian)

3

I. Reznikow, V. Sushchansky: A semigroups of intermedian growth generated a Mealy automata with two states over a $2$-element alphabet. Math. Notes, 2002 (accepted).

4

A. Olijnyk, I. Reznikow, V. Sushchansky: Semigroups of transformations generated by Mealy automata over a finite alphabet. Proc. III Intern. Algebraic Conference in Ukraine, Publ. of Institute of Math. NAN Ukraine, Kyiv, 2002.