TY - JOUR AU - N. I. Alexandrova TI - Diffraction of a longitudinal wave by a rigid elliptical cylinder JO - Doklady Akademii Nauk PY - 1991 SP - 857 EP - 861 VL - 318 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1991_318_4_a20/ LA - ru ID - DAN_1991_318_4_a20 ER -