@article{KUKZ_1970_7_7_a34,
     author = {G. G. Salahiev},
     title = {A boundary value problem for a quasilinear system of first order equations of mixed type},
     journal = {Trudy seminara po kraevym zada\v{c}am},
     pages = {232--238},
     publisher = {mathdoc},
     volume = {7},
     number = {7},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KUKZ_1970_7_7_a34/}
}