TY - JOUR AU - M. B. A. Babaev TI - On obtaining close estimates in the approximation of functions of many variables by sums of functions of a fewer number of variables JO - Matematičeskie zametki PY - 1972 SP - 105 EP - 114 VL - 12 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1972_12_1_a13/ LA - ru ID - MZM_1972_12_1_a13 ER -