TY - JOUR AU - V. A. Il'in TI - Tikhonov's work on methods of solving ill-posed problems JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1967 SP - 142 EP - 149 VL - 22 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RM_1967_22_2_a7/ LA - en ID - RM_1967_22_2_a7 ER -