TY  - JOUR
AU  - Johnson, B. E.
TI  - A Counterexample in the Perturbation Theory of C*-Algebras
JO  - Canadian mathematical bulletin
PY  - 1982
SP  - 311
EP  - 316
VL  - 25
IS  - 3
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1982-043-4/
DO  - 10.4153/CMB-1982-043-4
ID  - 10_4153_CMB_1982_043_4
ER  -