%0 Journal Article
%A A. S. Dzhafarov
%T Some classes of differentiable functions
%J Doklady Akademii Nauk
%D 1980
%P 1047-1051
%V 254
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1980_254_5_a5/
%G ru
%F DAN_1980_254_5_a5