%0 Journal Article %A A. S. Atkarskaya %T Stable groups over associative rings with $1/2$. Description of isomorphisms of the stable unitary groups %J Fundamentalʹnaâ i prikladnaâ matematika %D 2013 %P 3-21 %V 18 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/FPM_2013_18_4_a0/ %G ru %F FPM_2013_18_4_a0