%0 Journal Article %A V. V. Chernov (Tchernov) %A Y. B. Rudyak %T On generalized winding numbers %J Algebra i analiz %D 2008 %P 217-233 %V 20 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/AA_2008_20_5_a8/ %G en %F AA_2008_20_5_a8