@article{DAN_1971_196_4_a16,
     author = {S. Ya. Yakubov},
     title = {Solvability {\textquotedblleft}in the large{\textquotedblright} of the {Cauchy} problem for a first order quasi- linear hyperbolic system},
     journal = {Doklady Akademii Nauk},
     pages = {793--796},
     year = {1971},
     volume = {196},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1971_196_4_a16/}
}