TY - JOUR AU - Yu. E. Anikonov AU - M. V. Neshchadim TI - An identity for approximate quantum equations, and inverse problems JO - Sibirskij žurnal industrialʹnoj matematiki PY - 2007 SP - 3 EP - 9 VL - 10 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SJIM_2007_10_4_a0/ LA - ru ID - SJIM_2007_10_4_a0 ER -