@article{PDMA_2014_7_a59,
     author = {D. A. Katerinskiy},
     title = {Estimation for an output symbol multiplicity in invertible automata},
     journal = {Prikladnaya Diskretnaya Matematika. Supplement},
     pages = {141},
     publisher = {mathdoc},
     number = {7},
     year = {2014},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PDMA_2014_7_a59/}
}