Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1978_242_2_a4, author = {N. P. Korneichuk}, title = {Sharp inequalities for best approximation by splines}, journal = {Doklady Akademii Nauk}, pages = {280--283}, publisher = {mathdoc}, volume = {242}, number = {2}, year = {1978}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1978_242_2_a4/} }
N. P. Korneichuk. Sharp inequalities for best approximation by splines. Doklady Akademii Nauk, Tome 242 (1978) no. 2, pp. 280-283. http://geodesic.mathdoc.fr/item/DAN_1978_242_2_a4/