1. Adleman LM (1994) Science 266:1021–1024
2. Bennett J (1970) Am Philos Quat 7:175–191
3. Garrett RH, Grisham CM (1997) Biochemistry. Saunders College Publishing
4. Manca V, Martino MD (1999) Grammatical models of multi-agent systems. Gordon and Breach Science Publishers, London pp 297–315
5. Manca V (2002) International Meeting DNA Based Computers Hagiya M., Ohuchi A. (eds) Sapporo, Japan p 330