@article{DM_1994_6_4_a8,
     author = {G. Kilibarda},
     title = {On the minimal universal collectives of automata for plane labyrinths},
     journal = {Diskretnaya Matematika},
     pages = {133--153},
     year = {1994},
     volume = {6},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_1994_6_4_a8/}
}