%0 Journal Article
%A A. S. Kel'zon
%A O. V. Grigor'eva
%T Proportional navigation as a problem of cybernetics
%J Doklady Akademii Nauk
%D 1958
%P 432-435
%V 121
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1958_121_3_a9/
%G ru
%F DAN_1958_121_3_a9