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@article{KUKTF_1983_a3, author = {A. L. Kuz'mina}, title = {A best quadrature formula on~$W_{L_2}^{(n+1)}$}, journal = {Konstruktivnaya Teoriya Funktsii i Funktsional'nyi Analiz}, pages = {22--26}, publisher = {mathdoc}, year = {1983}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/KUKTF_1983_a3/} }
A. L. Kuz'mina. A best quadrature formula on~$W_{L_2}^{(n+1)}$. Konstruktivnaya Teoriya Funktsii i Funktsional'nyi Analiz, Konstruktivnaya Teoriya Funktsii i Funktsional'nyi Analiz (1983), pp. 22-26. http://geodesic.mathdoc.fr/item/KUKTF_1983_a3/
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[2] Nikolskii S. M., Kvadraturnye formuly, Nauka, M., 1979