@article{DAN_1961_136_4_a1,
     author = {V. M. Glushkov},
     title = {Abstract automata and the decomposition of free semigroups},
     journal = {Doklady Akademii Nauk},
     pages = {765--767},
     publisher = {mathdoc},
     volume = {136},
     number = {4},
     year = {1961},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1961_136_4_a1/}
}