Mehdi Samadi Jonathan Schaeffer Fatemeh Torabi Asr Majid Samar Zohreh Azimifar Using abstraction in Two-Player Games. 545-549 2008 ECAI http://dx.doi.org/10.3233/978-1-58603-891-5-545 conf/ecai/2008 db/conf/ecai/ecai2008.html#SamadiSASA08