%0 Journal Article
%A V. S. Balaganskii
%T Sufficient conditions of the metric function of differentiability
%J Trudy Instituta matematiki i mehaniki
%D 1992
%P 84-89
%V 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TIMM_1992_1_a5/
%G ru
%F TIMM_1992_1_a5