TY  - JOUR
AU  - R. I. Grigorchuk
TI  - An Ergodic Theorem for the Action of a~Free Semigroup
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 2000
SP  - 119
EP  - 133
VL  - 231
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TM_2000_231_a4/
LA  - ru
ID  - TM_2000_231_a4
ER  -