TY - JOUR AU - A. G. Kukharenko AU - Yu. A. Kukharenko TI - On the acoustic field near a disc covered with impedance layer JO - Doklady Akademii Nauk PY - 1975 SP - 775 EP - 777 VL - 222 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1975_222_4_a4/ LA - ru ID - DAN_1975_222_4_a4 ER -