%0 Journal Article
%A JEROME A. GOLDSTEIN
%T On the Convergence and Approximation of Cosine Functions (Short Communication)
%J Aequationes mathematicae
%D 1973
%P 309-309
%V 9
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AM2_1973__9_136373/
%F AM2_1973__9_136373