TY - JOUR AU - A. I. Grebennikov TI - An optimal method for approximating the values of nonlinear operators JO - Matematičeskie zametki PY - 1980 SP - 67 EP - 74 VL - 28 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1980_28_1_a7/ LA - ru ID - MZM_1980_28_1_a7 ER -