@article{IVM_2016_4_a7,
     author = {A. M. Romanovskaya},
     title = {Method of plane waves for hyperbolic system with several spatial variables},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {68--72},
     year = {2016},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2016_4_a7/}
}