Jin, Fang, Peide Liu, and Xin Zhang. “The Multi-Attribute Group Decision Making Method Based on the Interval Grey Linguistic Variables Weighted Harmonic Aggregation Operators”. Technological and Economic Development of Economy 19, no. 3 (October 3, 2013): 409-430. Accessed April 20, 2024. https://journals.vilniustech.lt/index.php/TEDE/article/view/4265.