1. A survey analysis of service quality for domestic airlines;Chang;European Journal of Operational Research,2002
2. Examining airline service quality from a process perspective;Chen;Journal of Air Transport Management,2005
3. Cross-cultural perspectives of service quality and risk in air transportation;Cunningham;Journal of Air Transportation,2002
4. Control problems of Grey systems;Deng;Systems and Control Letters,1982
5. Introduction to Grey system theory;Deng;The Journal of Grey Systems,1989