%0 Journal Article
%A V. F. Dem'yanov
%T On a necessary condition for an extremum in control problems with an aftereffect
%J Doklady Akademii Nauk
%D 1966
%P 275-277
%V 166
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1966_166_2_a3/
%G ru
%F DAN_1966_166_2_a3