@InProceedings{l02-p451-464, AUTHOR = {Jean-Christophe Dubacq and V\'eronique Terrier}, TITLE = {Signals for Cellular Automata in Dimension 2 or Higher}, YEAR = 2002, BOOKTITLE = {Proc.~of the 5th Latin American Symposium on Theoretical Informatics (LATIN'02)}, ADDRESS = {Cancun, Mexico}, PAGES = {451--464}, KEYWORDS = {}}