@article{DAN_1968_179_2_a0,
     author = {V. N. Agafonov},
     title = {Normal sequences and finite automata},
     journal = {Doklady Akademii Nauk},
     pages = {255--256},
     publisher = {mathdoc},
     volume = {179},
     number = {2},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1968_179_2_a0/}
}