TY - JOUR AU - Yu. N. Subbotin TI - Extremal problems of the theory of approximation of functions with incomplete information JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1980 SP - 152 EP - 168 VL - 145 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TM_1980_145_a7/ LA - ru ID - TM_1980_145_a7 ER -