%0 Journal Article
%A M. I. Sumin
%T The first variation and Pontryagin's maximum principle in optimal control for partial differential equations
%J Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki
%D 2009
%P 998-1020
%V 49
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ZVMMF_2009_49_6_a5/
%G ru
%F ZVMMF_2009_49_6_a5