@article{DM_1991_3_4_a5,
     author = {V. D. Anosov},
     title = {Transformation of an automaton group under the action of a~feedback operation that admits more than two values},
     journal = {Diskretnaya Matematika},
     pages = {47--51},
     publisher = {mathdoc},
     volume = {3},
     number = {4},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_1991_3_4_a5/}
}