Dear ustg Members, Last week, I sent a mail asking model for optimization models. I received lots of use full reply . Actually, I'm working with "Environmental emission mitigation project " for urban transportation. I do the research on least-cost strategy for emission mitigation from urban transportation. If any body could help me to find published papers of previous study on Least cost emission mitigation models for urban transportation I would very much appreciate. Thanking you Yours sincerely Gabrial Anandarajah ************************************ GABRIAL ANANDARAJAH ENERGY PROGRAM ASIAN INSTITUTE OF TECHNOLOGY P.O.BOX 4, KHLONGLUANG, PATHUMTHANI 12120, THAILAND ************************************ Phone: Office 0066-2524-5422 Home 0066-2524-8254 ************************************ E mail: [log in to unmask] ************************************ _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%