@article{DM_2011_23_3_a2,
     author = {S. V. Aleshin},
     title = {Automaton representation of a~free group},
     journal = {Diskretnaya Matematika},
     pages = {32--56},
     publisher = {mathdoc},
     volume = {23},
     number = {3},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_2011_23_3_a2/}
}