E. Lee, K. Ryu and I. Paik, “A Concept for Ubiquitous Transportation Systems and Related Development Methodology,” International IEEE Conference on Intelligent Transportation Systems, 2008, pp. 37-42.
 J. Wahle and M. Scbreckenberg, “A Multi-Agent System for On-lie Simulations Based on Real-World Traffic Data,” Proceedings of the International Conference on System Sciences, Hawaii, USA, 2001, pp. 1125-1133.
 T. Utsumi, S. Konno, Y. Kanno, Ken-ichi Yukimatsu, M. Kobayashi and M. Hashimoto, “A Feasibility Study on the Buffer-Less Routing Networks Using Deflection Routing Control,” Proceedings of IEICE, Vol. J92-B, No. 11, 2009, pp. 1741-1749.
 R. Iqbal, K. Yukimatsu and T. Ichikawa, “A Research on the Flexible Bus Systems Using Zigbee as a Communication Medium,” Proceedings of 4th IFIP International Conference on New Technologies, Mobility and Security, Paris, France, 7-10 February, 2010.