%0 Journal Article %A I. A. Taimanov %T On~the~existence of three nonselfintersecting closed geodesics on manifolds homeomorphic to the 2-sphere %J Izvestiya. Mathematics %D 1993 %P 565-590 %V 40 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM2_1993_40_3_a4/ %G en %F IM2_1993_40_3_a4