%0 Journal Article %A E. A. Sozontova %T On characteristic problems for one hyperbolic system in three-dimensional space %J Vestnik Samarskogo universiteta. Estestvennonaučnaâ seriâ %D 2013 %P 74-84 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/VSGU_2013_6_a7/ %G ru %F VSGU_2013_6_a7