%0 Journal Article
%A Roman R. Akopyan
%T Approximation of the differentiation operator on the class of functions analytic in an annulus
%J Ural mathematical journal
%D 2017
%P 6-13
%V 3
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/UMJ_2017_3_2_a1/
%G en
%F UMJ_2017_3_2_a1