TY - JOUR AU - D. Yu. Knyaz'kov AU - A. V. Romanova AU - A. S. Shamaev TI - A local perturbation method for the approximate calculation of the acoustic wave diffraction with impedance interface conditions JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 2016 SP - 184 EP - 194 VL - 295 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TM_2016_295_a9/ LA - ru ID - TM_2016_295_a9 ER -