TY  - JOUR
AU  - Shuang Zhang
TI  - Homotopy of projections and factorization in the unitary group of certain C*-algebras.
JO  - Mathematica Scandinavica
PY  - 1993
SP  - 281
EP  - 306
VL  - 73
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MS2_1993__73_2_167273/
ID  - MS2_1993__73_2_167273
ER  -