@article{UZKU_1969_129_4_a1,
     author = {B. S. Kochkarev},
     title = {A certain sufficient condition for the definiteness of an event that is represented by a~probabilistic automaton},
     journal = {U\v{c}\"enye zapiski Kazanskogo universiteta. Seri\^a Fiziko-matemati\v{c}eskie nauki},
     pages = {12--20},
     publisher = {mathdoc},
     volume = {129},
     number = {4},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/UZKU_1969_129_4_a1/}
}