@article{IVM_1974_5_a3,
     author = {R. G. Bukharaev and R. R. Bukharev},
     title = {A~topological method for the reduction of automata},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {31--39},
     publisher = {mathdoc},
     number = {5},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1974_5_a3/}
}