%0 Journal Article %A Sh. M. Takhirov %T Spatial diffraction problem on a rigid and opaque wedge in a Biot medium %J Vestnik Moskovskogo universiteta. Matematika, mehanika %D 1987 %P 82-84 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/VMUMM_1987_6_a20/ %G ru %F VMUMM_1987_6_a20