%0 Journal Article %A V. I. Kopeǐko %T On homotopization of the unitary $K_1$-functor %J Algebra i analiz %D 2008 %P 99-108 %V 20 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/AA_2008_20_5_a4/ %G ru %F AA_2008_20_5_a4