%0 Journal Article %A S. F. Morozov %A A. V. Semenov %T Generalized curves and necessary conditions for a~discontinuous solution of a~three-dimensional variational problem %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 2000 %P 21-26 %N 9 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_2000_9_a3/ %G ru %F IVM_2000_9_a3