@article{DAN_1971_199_6_a4,
     author = {A. D. Iskanderov},
     title = {On a mixed problem for loaded quasi-linear equations of hyperbolic type},
     journal = {Doklady Akademii Nauk},
     pages = {1237--1239},
     publisher = {mathdoc},
     volume = {199},
     number = {6},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1971_199_6_a4/}
}