%0 Journal Article
%A E. M. E. Zayed 
%T Short-time Asymptotics of the two-Dimensional wave Equation for an Annular Vibrating Membrane with Piecewise smooth Boundary Conditions
%J Δελτίο της Ελληνικής Μαθηματικής Εταιρίας

%D 2004
%P 75-84
%V 49
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DEME_2004__49_a5/
%G gr
%F DEME_2004__49_a5