Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1973_211_4_a2, author = {R. R. Varshamov}, title = {Operator substitutions in a {Galois} field and their application}, journal = {Doklady Akademii Nauk}, pages = {768--771}, publisher = {mathdoc}, volume = {211}, number = {4}, year = {1973}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1973_211_4_a2/} }
R. R. Varshamov. Operator substitutions in a Galois field and their application. Doklady Akademii Nauk, Tome 211 (1973) no. 4, pp. 768-771. http://geodesic.mathdoc.fr/item/DAN_1973_211_4_a2/