TY - JOUR AU - Sh. M. Takhirov TI - Spatial diffraction problem on a rigid and opaque wedge in a Biot medium JO - Vestnik Moskovskogo universiteta. Matematika, mehanika PY - 1987 SP - 82 EP - 84 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VMUMM_1987_6_a20/ LA - ru ID - VMUMM_1987_6_a20 ER -