%0 Journal Article %A R. I. Grigorchuk %T Symmetric random walks on discrete groups %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1977 %V 32 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1977_32_6_a9/ %G ru %F RM_1977_32_6_a9