Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1979_245_4_a5, author = {S. A. Pichugov}, title = {On the multidimensional {Jackson} theorem for linear polynomial approximations}, journal = {Doklady Akademii Nauk}, pages = {792--794}, publisher = {mathdoc}, volume = {245}, number = {4}, year = {1979}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1979_245_4_a5/} }
S. A. Pichugov. On the multidimensional Jackson theorem for linear polynomial approximations. Doklady Akademii Nauk, Tome 245 (1979) no. 4, pp. 792-794. http://geodesic.mathdoc.fr/item/DAN_1979_245_4_a5/