%0 Journal Article
%A Anders Kock
%A Gonzalo E. Reyes
%T Some calculus with extensive quantities:  
wave equation
%J Theory and applications of categories
%D 2003
%P 321-336
%V 11
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TAC_2003_11_a13/
%G en
%F TAC_2003_11_a13