Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1985_283_1_a6, author = {A. A. Ligun}, title = {Sharp constants in inequalities of {Jackson} type}, journal = {Doklady Akademii Nauk}, pages = {34--38}, publisher = {mathdoc}, volume = {283}, number = {1}, year = {1985}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1985_283_1_a6/} }
A. A. Ligun. Sharp constants in inequalities of Jackson type. Doklady Akademii Nauk, Tome 283 (1985) no. 1, pp. 34-38. http://geodesic.mathdoc.fr/item/DAN_1985_283_1_a6/