%0 Journal Article %A W. Desch %A W. Schappacher %T Hypercyclicity of Semigroups is a Very Unstable Property %J Mathematical modelling of natural phenomena %D 2008 %P 148-160 %V 3 %N 7 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.1051/mmnp:2008047/ %R 10.1051/mmnp:2008047 %G en %F MMNP_2008_3_7_a9