%0 Journal Article %A I. A. Aleksandrov %A V. Ya. Gutlyanskii %T Extremal problems for classes of analytic functions having a structural formula %J Doklady Akademii Nauk %D 1965 %P 983-986 %V 165 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1965_165_5_a0/ %G ru %F DAN_1965_165_5_a0