Prof. Pardalos is a distinguished Springer author and recognized throughout the world as a first rate mathematician. Prof. Rentsen has an extensive CV and list of publications, and he has organized the first and second International Conference for Optimization and Optimal Control (2002, 2007) in Mongolia. (We might be able to possibly do a bulk sale for his book for the 3rd international conference.) Pardalos, Tseveendorj, Enkhbat have edited a volume together before with World Scientific. "Optimization and Optimal Control" (World Scientific, 978-9812385970, $106, 2003) Prof. Chinchuluun has recently helped Pardalos with another optimization edited volume which will be available in 2008.