Khoobiyan, M., A. Pooya, A. Tavakkoli, and F. Rahimnia. “Taxonomy of Manufacturing Flexibility at Manufacturing Companies Using Imperialist Competitive Algorithms, Support Vector Machines and Hierarchical Cluster Analysis”. Engineering, Technology & Applied Science Research, vol. 7, no. 2, Apr. 2017, pp. 1559-66, doi:10.48084/etasr.1022.