%0 Journal Article
%A S. Ya. Serovaǐskiǐ
%T Necessary conditions for an extremum in the case of the nondifferentiability of the state function with respect to the control
%J Differencialʹnye uravneniâ
%D 1995
%P 1055-1059
%V 31
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1995_31_6_a15/
%G ru
%F DE_1995_31_6_a15