%0 Journal Article
%A I. B. Vapnyarskii
%T An existence theorem for optimal control in the Boltz problem, some of its applications and the necessary conditions for the optimality of moving and singular systems
%J Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki
%D 1967
%P 259-283
%V 7
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ZVMMF_1967_7_2_a1/
%G ru
%F ZVMMF_1967_7_2_a1