INFORMS Annual Meeting, 2009-10-11
Proceedings of the Joint Conference of Korean Institute of Industrial Engineers and Korean Operations Research and Management Science Society, 2009-05-22
The Joint Conference of Korean Institute of Industrial Engineers and Korean Operations Research and Management Science Society, 2009-05-22
APIEMS (Asia-Pacific Industrial Engineering and Management Systems), 2009-12-14
The 10th Asia Pacific Industrial Engineering and Management Systems Conference, 2009-12-14