Huang, Jih-Jeng, and Gwo-Hshiung Tzeng. “New Thinking of Multi-Objective Programming With Changeable Space – in Search of Excellence”. Technological and Economic Development of Economy 20, no. 2 (June 27, 2014): 254-273. Accessed November 13, 2024. https://gc.vgtu.lt/index.php/TEDE/article/view/3415.