TY - JOUR AU - D. S. Konovalova TI - A method for approximating the visibility measure in X-ray tomography JO - Sibirskij žurnal industrialʹnoj matematiki PY - 2005 SP - 64 EP - 69 VL - 8 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SJIM_2005_8_1_a7/ LA - ru ID - SJIM_2005_8_1_a7 ER -