1. Azam, M.S.: The diffusion of ICT and SME performance. In: Quaddus, M., Woodside, A.G. (eds.) Advances in Business Marketing and Purchasing, pp. 7–290. Bingley, Emerald Group Publishing Limited (2015)
2. Zott, C., Amit, R.: Business model design: an activity system perspective. Long Range Plan. 43, 216–226 (2010)
3. Deng, J.L.: Grey System Control. Huazhong University of Science and Technology Press, Wuhan (1985)
4. Deng, J.: Grey Control System. Printing House of Central China University of Science and Technology, Hubei (1985)
5. Pei, L.-l., Chen, W.-M., Cui, J.-F., Zhuang, G.-B.: Weighted degree of grey incidence based on optimization entropy. In: IEEE International Conference on Grey Systems and Intelligent Services, GSIS 2009, Nanjing, pp. 340–343