2007 IEEE International Conference on Service Operations and Logistics, and Informatics Service Operations and Logistics, and Informatics, 2007. SOLI 2007. IEEE International Conference on. :1-6 Aug, 2007
2006 IEEE International Conference on Service Operations and Logistics, and Informatics Service Operations and Logistics, and Informatics, 2006. SOLI '06. IEEE International Conference on. :153-157 Jun, 2006