%0 Journal Article %A Frank Neubrander %T Integrated semigroups and their application to complete second order Cauchy problems. %J Semigroup forum %D 1989 %P 233-252 %V 38 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/SF_1989__38_2_134957/ %F SF_1989__38_2_134957