1. Winning ways for your mathematical plays;Berlekamp,1982
2. Callahan P. Paul’s page of Conway’s life miscellany. http://www.radicaleye.com/lifepage/lifepage.html
3. A new kind of science;Wolfram,2002
4. The image processing handbook;Russ,2002
5. A local cellular model for snow crystal growth;Reiter;Chaos, Solitons & Fractals,2005