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@article{DAN_1970_195_5_a9, author = {Yu. N. Subbotin}, title = {Approximation of functions of class $W^kH_\omega^p$ by splines of order~$m$}, journal = {Doklady Akademii Nauk}, pages = {1039--1041}, publisher = {mathdoc}, volume = {195}, number = {5}, year = {1970}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1970_195_5_a9/} }
Yu. N. Subbotin. Approximation of functions of class $W^kH_\omega^p$ by splines of order~$m$. Doklady Akademii Nauk, Tome 195 (1970) no. 5, pp. 1039-1041. http://geodesic.mathdoc.fr/item/DAN_1970_195_5_a9/