%0 Journal Article
%A M. K. Potapov
%T The study of certain classes of functions by means of ``angular''' approximation
%J Informatics and Automation
%D 1972
%P 256-291
%V 117
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TRSPY_1972_117_a13/
%G ru
%F TRSPY_1972_117_a13