Yadegari, R., K. Rahmani, and F. Modarres Khiyabani. “Identification and Prioritization of Effective Factors on the Creation and Development of Industry Cluster of Rail Industries Using Network Analysis Technique”. Brazilian Journal of Operations & Production Management, vol. 15, no. 4, Sept. 2018, pp. 490-8, doi:10.14488/BJOPM.2018.v15.n4.a3.