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@article{MZM_1991_49_5_a21, author = {K. T. Mynbaev}, title = {Approximation of the operator of differentiation in a weighted {Sobolev} class}, journal = {Matemati\v{c}eskie zametki}, pages = {153--154}, publisher = {mathdoc}, volume = {49}, number = {5}, year = {1991}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1991_49_5_a21/} }
K. T. Mynbaev. Approximation of the operator of differentiation in a weighted Sobolev class. Matematičeskie zametki, Tome 49 (1991) no. 5, pp. 153-154. http://geodesic.mathdoc.fr/item/MZM_1991_49_5_a21/