TY - JOUR AU - S. G. Pyatkov TI - On some inverse problems for elliptic equations and systems JO - Sibirskij žurnal industrialʹnoj matematiki PY - 2010 SP - 83 EP - 96 VL - 13 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SJIM_2010_13_4_a7/ LA - ru ID - SJIM_2010_13_4_a7 ER -