@article{DE_1970_6_9_a16,
     author = {K. K. Gasanov},
     title = {The application of the method of wave regions to the solution of a mixed problem for quasilinear hyperbolic equations 
},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1697--1707},
     publisher = {mathdoc},
     volume = {6},
     number = {9},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1970_6_9_a16/}
}