|title= Graph-rewriting automata as a natural extension of cellular automata|author1=Tomita, Kohji|author2=Haruhisa Kurokawa| author3= Satoshi Murata|journal= Adaptive Networks |volume= Springer|pages= 291-309 | |title= Graph-rewriting automata as a natural extension of cellular automata|author1=Tomita, Kohji|author2=Haruhisa Kurokawa| author3= Satoshi Murata|journal= Adaptive Networks |volume= Springer|pages= 291-309 |