%0 Journal Article %A A. V. Pajitnov %T On closed orbits of gradient flows for circle-valued mappings %J Algebra i analiz %D 2002 %P 186-240 %V 14 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/AA_2002_14_3_a8/ %G ru %F AA_2002_14_3_a8