%0 Journal Article
%A G. A. Seregin
%T On the differentiability of extremals of variational problems of the mechanics of ideally elastoplastic media
%J Differencialʹnye uravneniâ
%D 1987
%P 1981-1991
%V 23
%N 11
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1987_23_11_a16/
%G ru
%F DE_1987_23_11_a16