TY  - JOUR
AU  - Kuzma, Bojan
TI  - Noninvertibility preservers on Banach algebras
JO  - Czechoslovak Mathematical Journal
PY  - 2006
SP  - 919
EP  - 921
VL  - 56
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CMJ_2006__56_3_a9/
LA  - en
ID  - CMJ_2006__56_3_a9
ER  -