@article{GDZPPN002333120, title = {Stability and spectra of C0-semigroups.}, journal = {Mathematische Annalen}, volume = {283}, year = {1989}, pages = {201-220}, zbl = {0698.47023}, url = {http://dml.mathdoc.fr/item/GDZPPN002333120} }
Wrobel, Volker. Stability and spectra of C0-semigroups.. Mathematische Annalen, Tome 283 (1989) pp. 201-220. http://gdmltest.u-ga.fr/item/GDZPPN002333120/