TY - JOUR AU - A. R. Danilin AU - V. P. Tanana TI - Necessary and sufficient conditions for convergence of approximations of linear ill-posed problems in a Hilbert space JO - Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki PY - 1984 SP - 633 EP - 639 VL - 24 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ZVMMF_1984_24_5_a1/ LA - ru ID - ZVMMF_1984_24_5_a1 ER -