%0 Journal Article %A S. Ya. Havinson %T On some extremal problems of the theory of analytic functions %J Uchenye Zapiski Moskovskogo Gosudarstvennogo Universiteta %D 1951 %P 133-143 %V 148 %N 148 %I mathdoc %U http://geodesic.mathdoc.fr/item/UZMU_1951_148_148_a9/ %G ru %F UZMU_1951_148_148_a9