@article{PFMT_2014_2_a3,
     author = {G. Ch. Shushkevich and S. V. Shushkevich and N. N. Kiseleva},
     title = {Penetration of the sound field of {\cyra} spherical radiator through the spherical elastic shell},
     journal = {Problemy fiziki, matematiki i tehniki},
     pages = {25--32},
     publisher = {mathdoc},
     number = {2},
     year = {2014},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PFMT_2014_2_a3/}
}