@article{DAN_1989_306_3_a7,
     author = {B. Ya. Ryabko},
     title = {A fast on-line code},
     journal = {Doklady Akademii Nauk},
     pages = {548--552},
     publisher = {mathdoc},
     volume = {306},
     number = {3},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1989_306_3_a7/}
}