%0 Journal Article
%A G.F. Webb
%T A representation formula for strongly continuous cosine families. (Short Communication).
%J Aequationes mathematicae
%D 1980
%P 115-116
%V 20
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AM2_1980__20_182388/
%F AM2_1980__20_182388