Figuerola-Wischke, Anton, and Anna Maria Gil-Lafuente. “Forecasting the Real Average Retirement Benefit in the United States Using OWA Operators”. Technological and Economic Development of Economy 30, no. 4 (May 29, 2024): 956–975. Accessed November 24, 2024. https://jbem.vgtu.lt/index.php/TEDE/article/view/20763.