%0 Journal Article
%A A. G. Vitushkin
%T A proof of upper semicontinuity of a set variation
%J Doklady Akademii Nauk
%D 1966
%P 1022-1025
%V 166
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1966_166_5_a2/
%G ru
%F DAN_1966_166_5_a2