@article{MZM_1970_7_3_a9,
     author = {Al. A. Markov},
     title = {Combinatorial lemma and structure of a class of binary codes},
     journal = {Matemati\v{c}eskie zametki},
     pages = {325--331},
     publisher = {mathdoc},
     volume = {7},
     number = {3},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1970_7_3_a9/}
}