TY - JOUR AU - A. N. Tikhonov TI - Ill-posed problems of optimal planning and stable methods for their solution JO - Doklady Akademii Nauk PY - 1965 SP - 507 EP - 510 VL - 164 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1965_164_3_a7/ LA - ru ID - DAN_1965_164_3_a7 ER -