@article{ZNSL_1980_97_a10,
     author = {V. A. Kaimanovich},
     title = {The spectral measure of transition operator and harmonic functions, connected with the random walks on discrete groups},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {102--109},
     publisher = {mathdoc},
     volume = {97},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1980_97_a10/}
}