%0 Journal Article %A I. I. Ibragimov %A B. A. Rymarenko %T On certain conditionally extremal problems in the class of entire functions of finite degree %J Doklady Akademii Nauk %D 1966 %P 278-280 %V 166 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1966_166_2_a4/ %G ru %F DAN_1966_166_2_a4