%0 Journal Article %J Wuhan University Journal of Natural Sciences %D 2007 %T A Fuzzy Directed Graph-based QoS Model for Service Composition %A Sanjun,G. %A Wanchun,D. %A Fan,Shaokun %K BIS %K Business Analytics %B Wuhan University Journal of Natural Sciences %V 12 %8 2007 %G eng %N 5 %2 a %4 132759564288 %$ 132759564288