%0 Journal Article %A V. È. Gheit %T Characterization of a sequence of approximations by Zygmund means %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1996 %P 78-79 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1996_6_a10/ %G ru %F IVM_1996_6_a10