@article{DAN_1973_213_1_a5,
     author = {Z. R. Dang},
     title = {On the complexity of a finite automaton corresponding to a generalized regular expression},
     journal = {Doklady Akademii Nauk},
     pages = {26--29},
     publisher = {mathdoc},
     volume = {213},
     number = {1},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1973_213_1_a5/}
}