@article{TVP_1984_29_2_a12,
     author = {R. I. Grigorchuk and A. M. Stepin},
     title = {Gibbs states on countable groups},
     journal = {Teori\^a vero\^atnostej i ee primeneni\^a},
     pages = {351--354},
     year = {1984},
     volume = {29},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TVP_1984_29_2_a12/}
}