%0 Journal Article %A Osamu Hatori %A Keiichi Watanabe %T Isometries between groups of invertible elements in $C^{*}$-algebras %J Studia Mathematica %D 2012 %P 103-106 %V 209 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm209-2-1/ %R 10.4064/sm209-2-1 %G en %F 10_4064_sm209_2_1