%0 Journal Article
%A P. L. Ul'yanov
%T On~classes of infinitely differentiable functions
%J Sbornik. Mathematics
%D 1991
%P 11-30
%V 70
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SM_1991_70_1_a1/
%G en
%F SM_1991_70_1_a1