%0 Journal Article
%A V. N. Koshelev
%A S. F. Morozov
%T Necessary conditions for the extremum of variational problems in nonparametric form on the collection of discontinuous functions
%J Izvestiâ vysših učebnyh zavedenij. Matematika
%D 1970
%P 37-46
%N 12
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IVM_1970_12_a4/
%G ru
%F IVM_1970_12_a4