Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1961_140_6_a10, author = {V. I. Levenshtein}, title = {Certain properties of code systems}, journal = {Doklady Akademii Nauk}, pages = {1274--1277}, publisher = {mathdoc}, volume = {140}, number = {6}, year = {1961}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1961_140_6_a10/} }
V. I. Levenshtein. Certain properties of code systems. Doklady Akademii Nauk, Tome 140 (1961) no. 6, pp. 1274-1277. http://geodesic.mathdoc.fr/item/DAN_1961_140_6_a10/