%0 Journal Article %A Leen, Michael J. %T Factorization in the Invertible Group of a C*-Algebra %J Canadian journal of mathematics %D 1997 %P 1188-1205 %V 49 %N 6 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1997-058-7/ %R 10.4153/CJM-1997-058-7 %F 10_4153_CJM_1997_058_7