%0 Journal Article
%A E. R. Avakov
%A G. G. Magaril-Il'yaev
%T Relaxation and controllability in optimal control problems
%J Sbornik. Mathematics
%D 2017
%P 585-619
%V 208
%N 5
%U http://geodesic.mathdoc.fr/item/SM_2017_208_5_a0/
%G en
%F SM_2017_208_5_a0