%0 Journal Article %A P.M. Soardi %T Limit Theorems for Random Walks on Discrete Semigroups Related to Nonhomogeneous Trees and Chebyshev Polynomials. %J Mathematische Zeitschrift %D 1988 %P 313-326 %V 200 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZ_1988__200_3_174011/ %F MZ_1988__200_3_174011