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@article{IVM_1985_5_a3, author = {M. I. Ganzburg}, title = {Best harmonic approximation of convolutions in $L_1$ and $L_\infty$}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {22--27}, publisher = {mathdoc}, number = {5}, year = {1985}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1985_5_a3/} }
M. I. Ganzburg. Best harmonic approximation of convolutions in $L_1$ and $L_\infty$. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 5 (1985), pp. 22-27. http://geodesic.mathdoc.fr/item/IVM_1985_5_a3/