2011 IEEE 18th International Conference on Industrial Engineering and Engineering Management Industrial Engineering and Engineering Management (IE&EM), 2011 IEEE 18Th International Conference on. Part 2:1169-1172 Sep, 2011
2011 IEEE 18th International Conference on Industrial Engineering and Engineering Management Industrial Engineering and Engineering Management (IE&EM), 2011 IEEE 18Th International Conference on. Part 1:526-531 Sep, 2011