%0 Journal Article %A V. V. Volchkov %A Vit. V. Volchkov %T Tangent approximation by solutions of the convolution equation %J Problemy analiza %D 2022 %P 125-142 %V 11 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/PA_2022_11_3_a8/ %G en %F PA_2022_11_3_a8