%0 Journal Article %A V. A. Terletskii %T A~ariational maximum principle in controlled systems of one-dimensional hyperbolic equations %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1999 %P 82-90 %N 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1999_12_a10/ %G ru %F IVM_1999_12_a10