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@article{IVM_1979_7_a1, author = {D. L. Berman}, title = {Extended {Hermite--Fej\'er} interpolation processes constructed for $f(x)=x^k$}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {10--14}, publisher = {mathdoc}, number = {7}, year = {1979}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1979_7_a1/} }
D. L. Berman. Extended Hermite--Fej\'er interpolation processes constructed for $f(x)=x^k$. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 7 (1979), pp. 10-14. http://geodesic.mathdoc.fr/item/IVM_1979_7_a1/