TY  - JOUR
AU  - J. Voigt
TI  - Stability of the essential type of strongly continuous semigroups
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1994
SP  - 469
EP  - 477
VL  - 203
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TM_1994_203_a36/
LA  - en
ID  - TM_1994_203_a36
ER  -