@article{DAN_1983_270_6_a13,
     author = {I. A. Pokrovskaya},
     title = {Complexity of probabilistic automata which recognize regular},
     journal = {Doklady Akademii Nauk},
     pages = {1340--1342},
     publisher = {mathdoc},
     volume = {270},
     number = {6},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1983_270_6_a13/}
}