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@article{TM_1994_203_a36, author = {J. Voigt}, title = {Stability of the essential type of strongly continuous semigroups}, journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova}, pages = {469--477}, publisher = {mathdoc}, volume = {203}, year = {1994}, language = {en}, url = {http://geodesic.mathdoc.fr/item/TM_1994_203_a36/} }
J. Voigt. Stability of the essential type of strongly continuous semigroups. Trudy Matematicheskogo Instituta imeni V.A. Steklova, Selected problems of mathematical physics and analysis, Tome 203 (1994), pp. 469-477. http://geodesic.mathdoc.fr/item/TM_1994_203_a36/