Costea, Adrian, Massimiliano Ferrara, and Florentin Şerban. “An Integrated Two-Stage Methodology for Optimising the Accuracy of Performance Classification Models”. Technological and Economic Development of Economy 23, no. 1 (January 22, 2017): 111-139. Accessed October 22, 2019. https://journals.vgtu.lt/index.php/TEDE/article/view/630.