@article{DAN_1974_215_2_a8,
     author = {A. L. Semenov},
     title = {Regularity of languages $k$-linear for various $k$},
     journal = {Doklady Akademii Nauk},
     pages = {278--281},
     publisher = {mathdoc},
     volume = {215},
     number = {2},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1974_215_2_a8/}
}