%0 Journal Article %A A. N. Plyushchenko %T Overlap-free words and free Burnside semigroup with two generators satisfying $x^2=x^3$. %J Sibirskie èlektronnye matematičeskie izvestiâ %D 2009 %P 166-181 %V 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/SEMR_2009_6_a7/ %G ru %F SEMR_2009_6_a7