%0 Journal Article %A V. V. Volchkov %A Vit. V. Volchkov %T Continuous extension of functions from a segment to functions in $\mathbb{R}^n$ with zero ball means %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 2021 %P 3-14 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_2021_3_a0/ %G ru %F IVM_2021_3_a0