%0 Journal Article %A I. I. Ibragimov %T On an estimate of the norm of some linear operators in classes of entire functions of finite degree %J Doklady Akademii Nauk %D 1973 %P 1276-1279 %V 211 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1973_211_6_a6/ %G ru %F DAN_1973_211_6_a6