@article{IVM_1988_7_a13,
     author = {F. M. Ablayev},
     title = {On the complexity of probabilistic automata with an isolated cross-section point},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {88--89},
     year = {1988},
     number = {7},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1988_7_a13/}
}