R. Mateo, L. Cervantes, H. Yang, and J. Lee. KES-AMSTA '07: Proceedings of the 1st KES International Symposium on Agent and Multi-Agent Systems, page 795--804. Berlin, Heidelberg, Springer-Verlag, (2007)
M. Viswanathan, T. Whangbo, K. Lee, and Y. Yang. ICCS '07: Proceedings of the 7th international conference on Computational Science, Part III, page 701--708. Berlin, Heidelberg, Springer-Verlag, (2007)