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@article{IVM_1989_2_a4, author = {A. A. Konyushkov}, title = {Fourier coefficients}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {25--28}, publisher = {mathdoc}, number = {2}, year = {1989}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1989_2_a4/} }
A. A. Konyushkov. Fourier coefficients. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 2 (1989), pp. 25-28. http://geodesic.mathdoc.fr/item/IVM_1989_2_a4/