%0 Journal Article
%A R. Cordovil
%A Rui Dilao
%A Ana Noronha da Costa
%T Periodic Orbits for Additive Cellular Automata.
%J Discrete & computational geometry
%D 1986
%P 277-288
%V 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DCG_1986__1_130995/
%F DCG_1986__1_130995