@article{DAN_1967_172_6_a9,
     author = {G. M. Fateeva},
     title = {The {Cauchy} problem and boundary value problem for linear and quasi-linear degenerating hyperbolic equations of second order},
     journal = {Doklady Akademii Nauk},
     pages = {1278--1281},
     publisher = {mathdoc},
     volume = {172},
     number = {6},
     year = {1967},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1967_172_6_a9/}
}