Lourenço, João Carlos, João Oliveira Soares, and Carlos A. Bana E Costa. “Portfolio Robustness Evaluation: a Case Study in the Electricity Sector”. Technological and Economic Development of Economy 23, no. 1 (January 22, 2017): 59-80. Accessed November 10, 2024. https://ijspm.vgtu.lt/index.php/TEDE/article/view/628.