@article{ZNSL_1981_104_a10,
     author = {A. P. Kiselev},
     title = {Excitation of modulated waves in inhomogenious media},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {111--122},
     year = {1981},
     volume = {104},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1981_104_a10/}
}