Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1975_223_5_a10, author = {V. N. Temlyakov}, title = {Best approximations for functions of two variables}, journal = {Doklady Akademii Nauk}, pages = {1079--1082}, publisher = {mathdoc}, volume = {223}, number = {5}, year = {1975}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1975_223_5_a10/} }
V. N. Temlyakov. Best approximations for functions of two variables. Doklady Akademii Nauk, Tome 223 (1975) no. 5, pp. 1079-1082. http://geodesic.mathdoc.fr/item/DAN_1975_223_5_a10/