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@article{IVM_1969_2_a4, author = {E. P. Kalugina}, title = {A~generalization of a~composite quadrature formula of {S.\,M.~Nikol'skii}}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {45--53}, publisher = {mathdoc}, number = {2}, year = {1969}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1969_2_a4/} }
E. P. Kalugina. A~generalization of a~composite quadrature formula of S.\,M.~Nikol'skii. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 2 (1969), pp. 45-53. http://geodesic.mathdoc.fr/item/IVM_1969_2_a4/