@article{PFMT_2013_1_a8,
     author = {G. Ch. Shushkevich and N. N. Kiseleva},
     title = {Calculation of the attenuation coefficient of the sound field of a spherical radiator by penetrable spherical shell},
     journal = {Problemy fiziki, matematiki i tehniki},
     pages = {48--54},
     publisher = {mathdoc},
     number = {1},
     year = {2013},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PFMT_2013_1_a8/}
}