%0 Journal Article
%A Pavlos Sinopoulos
%T A New Generalization of Sine and cosine functional equations
%J Ευκλείδης Γ

%D 1991
%P 43-49
%V 28
%I mathdoc
%U http://geodesic.mathdoc.fr/item/EUG_1991__28_a3/
%G gr
%F EUG_1991__28_a3