2007 IEEE Congress on Services (SERVICES 2007) : proceedings : Salt Lake City, Utah, USA, July 9-13, 2007 / edited by Liang-Jie (LJ) Zhang, Jian Yang, Patrick C.K. Hung ; [sponsored by] IEEE Computer Society. - Zhang, Liang-Jie; Yang, Jian, 1962 Jan. 18-; Hung, Patrick C. K. (IEEE Computer Society, 2007)