@article{ZNSL_1987_165_a8,
     author = {N. Ya. Kirpichnikova},
     title = {Waves on the survace of a heavy fluid from the standpoint of the space-time ray-tracing method and its modifications (linear theory)},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {91--101},
     year = {1987},
     volume = {165},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1987_165_a8/}
}