TY  - JOUR
AU  - Kordula, Vladimír
TI  - On the defect spectrum of an extension of a Banach space operator
JO  - Czechoslovak Mathematical Journal
PY  - 1998
SP  - 609
EP  - 616
VL  - 48
IS  - 4
PB  - mathdoc
UR  - https://geodesic-test.mathdoc.fr/item/CMJ_1998__48_4_a0/
LA  - en
ID  - CMJ_1998__48_4_a0
ER  -