@article{DM_1994_6_2_a7,
     author = {O. M. Kopytova},
     title = {Indistinguishability of finite automata by multiple experiments in a stationary observation environment},
     journal = {Diskretnaya Matematika},
     pages = {120--128},
     publisher = {mathdoc},
     volume = {6},
     number = {2},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_1994_6_2_a7/}
}