@article{MZ_1988__200_3_174011,
     author = {P.M. Soardi},
     title = {Limit {Theorems} for {Random} {Walks} on {Discrete} {Semigroups} {Related} to {Nonhomogeneous} {Trees} and {Chebyshev} {Polynomials.}},
     journal = {Mathematische Zeitschrift},
     pages = {313--326},
     publisher = {mathdoc},
     volume = {200},
     number = {3},
     year = {1988},
     zbl = {0676.60012},
     url = {http://geodesic.mathdoc.fr/item/MZ_1988__200_3_174011/}
}