1. Lecture Notes in Computer Science;M. Jang,2010
2. Ji, K., Kim, M., Park, J.: Ubiquitous city’s market opportunity and potential. ETRI Report, Electronics and Telecommunications Research Institute (2006)
3. Lecture Notes in Artificial Intelligence;P. Kim,2007
4. Lecture Notes in Computer Science;O. Kwon,2007
5. Lee, S., Leem, Y.: U-City Planning Characteristics. Journal of the Korean Planners Association 43(5), 179–189 (2008)