%0 Journal Article %A Reiner Berntzen %T Accretive approximation in C*-algebras %J Studia Mathematica %D 1995 %P 115-121 %V 117 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-117-2-115-121/ %R 10.4064/sm-117-2-115-121 %G en %F 10_4064_sm_117_2_115_121