%0 Journal Article
%A A. V. Arutyunov
%T Higher-order conditions in abnormal extremal problems with
%J Doklady Akademii Nauk
%D 1990
%P 521-525
%V 315
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1990_315_3_a0/
%G ru
%F DAN_1990_315_3_a0