@article{DAN_1987_293_3_a9,
     author = {E. F. Afanas'ev and K. L. Grdzelova and D. V. Plyushchev},
     title = {On sources of sound generation in porous media
},
     journal = {Doklady Akademii Nauk},
     pages = {554--557},
     publisher = {mathdoc},
     volume = {293},
     number = {3},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1987_293_3_a9/}
}