%0 Journal Article
%A M. I. Zelikin
%T Conditions for optimality of singular trajectories in the problem of minimizing a curvilinear integral
%J Doklady Akademii Nauk
%D 1982
%P 528-531
%V 267
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1982_267_3_a2/
%G ru
%F DAN_1982_267_3_a2