@article{VSGTU_2012_1_a25,
     author = {E. A. Kozlova},
     title = {Control problem for the hyperbolic equation with the characteristics having the angular coefficients of the same sign},
     journal = {Journal of Samara State Technical University, Ser. Physical and Mathematical Sciences},
     pages = {243--247},
     publisher = {mathdoc},
     number = {1},
     year = {2012},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VSGTU_2012_1_a25/}
}