%0 Journal Article
%A A. A. Agrachev
%A R. V. Gamkrelidze
%T The Pontryagin Maximum Principle 50 years later
%J Trudy Instituta matematiki i mehaniki
%D 2006
%P 6-14
%V 12
%N 1
%U http://geodesic.mathdoc.fr/item/TIMM_2006_12_1_a1/
%G ru
%F TIMM_2006_12_1_a1