@article{DAN_1993_328_2_a0,
     author = {T. I. Kiguradze},
     title = {On a boundary value problem for quasilinear hyperbolic systems},
     journal = {Doklady Akademii Nauk},
     pages = {135--138},
     publisher = {mathdoc},
     volume = {328},
     number = {2},
     year = {1993},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1993_328_2_a0/}
}