TY - JOUR AU - A. I. Kozhanov TI - Solvability of Some Inverse Problems of Determining Coefficients of Mixed-Type Equations JO - Sibirskij žurnal čistoj i prikladnoj matematiki PY - 2008 SP - 81 EP - 99 VL - 8 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VNGU_2008_8_3_a4/ LA - ru ID - VNGU_2008_8_3_a4 ER -