TY - JOUR AU - M. S. Soppa TI - The use of duality relations for $E$-~and~$H$-polarisations in inverse problems of scattering on impedance surfaces JO - Sibirskij žurnal industrialʹnoj matematiki PY - 2004 SP - 111 EP - 116 VL - 7 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SJIM_2004_7_2_a10/ LA - ru ID - SJIM_2004_7_2_a10 ER -