TY - JOUR AU - Đinh Dung AU - G. G. Magaril-Il'yaev TI - Problems of Bernstein and Favard type and the mean $\varepsilon$-dimension of some classes of functions JO - Doklady Akademii Nauk PY - 1979 SP - 783 EP - 786 VL - 249 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1979_249_4_a2/ LA - ru ID - DAN_1979_249_4_a2 ER -