Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1963_152_1_a4, author = {N. N. Vorob'ev}, title = {An extremal matrix algebra}, journal = {Doklady Akademii Nauk}, pages = {24--27}, publisher = {mathdoc}, volume = {152}, number = {1}, year = {1963}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1963_152_1_a4/} }
N. N. Vorob'ev. An extremal matrix algebra. Doklady Akademii Nauk, Tome 152 (1963) no. 1, pp. 24-27. http://geodesic.mathdoc.fr/item/DAN_1963_152_1_a4/