%0 Journal Article
%A S. F. Morozov
%T Necessary conditions for the extremum of two-dimensional variational problems on a~collection of discontinuous functions
%J Izvestiâ vysših učebnyh zavedenij. Matematika
%D 1972
%P 55-63
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IVM_1972_1_a6/
%G ru
%F IVM_1972_1_a6