@article{VMUMM_1987_6_a20,
     author = {Sh. M. Takhirov},
     title = {Spatial diffraction problem on a rigid and opaque wedge in a {Biot} medium},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {82--84},
     publisher = {mathdoc},
     number = {6},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1987_6_a20/}
}