@article{MM_1995_7_5_a28,
     author = {V. N. Zakharov},
     title = {Cauchy problem for a~hyperbolic equation with two lines of degeneracy},
     journal = {Matemati\v{c}eskoe modelirovanie},
     pages = {55},
     publisher = {mathdoc},
     volume = {7},
     number = {5},
     year = {1995},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MM_1995_7_5_a28/}
}