- CoRR (2007)
- CoRR (2006)
- CoRR (2009)
- CoRR (2008)
- CoRR (2010)
- CoRR (2005)
- CoRR (2010)
- CoRR (2008)
- CoRR (2008)
- CoRR (2000)
- CoRR (2005)
- CoRR (2002)
- CoRR (2007)
- CoRR (2009)
- CoRR (2007)
- CoRR (2009)
- CoRR (2008)
- CoRR (1999)
- CoRR (2009)
- Artificial Life 1(3):293-301 (1994)


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