@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/}
}