%0 Journal Article
%A S. P. Novikov
%A I. A. Taimanov
%T Periodic extremals of multivalued or not everywhere positive functionals
%J Doklady Akademii Nauk
%D 1984
%P 26-28
%V 274
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1984_274_1_a4/
%G ru
%F DAN_1984_274_1_a4