%0 Journal Article %A S. M. Gusein-Zade %T Fixed points of $U$-actions of a~circle %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1971 %V 26 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1971_26_4_a19/ %G ru %F RM_1971_26_4_a19