@article{RM_1980_35_1_a17,
     author = {B. R. Vainberg and V. G. Maz'ya},
     title = {On the characteristic {Cauchy} problem for a hyperbolic equation},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {237--238},
     publisher = {mathdoc},
     volume = {35},
     number = {1},
     year = {1980},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1980_35_1_a17/}
}