TY - JOUR AU - A. I. Kozhanov AU - Yu. A. Kosheleva TI - Linear inverse problems for ultraparabolic equations: the case of an unknown coefficient of space type JO - Sibirskij žurnal čistoj i prikladnoj matematiki PY - 2016 SP - 27 EP - 39 VL - 16 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VNGU_2016_16_3_a2/ LA - ru ID - VNGU_2016_16_3_a2 ER -