Amparo Fúster-Sabater Pino Caballero-Gil Oscar Delgado-Mohatar Cellular Automata-Based Structures to Compute the Solutions of Linear Difference Equations. 42-49 2008 ACRI http://dx.doi.org/10.1007/978-3-540-79992-4_6 conf/acri/2008 db/conf/acri/acri2008.html#Fuster-SabaterCD08