“Sensitivity of the Efficient Frontier to Changes in the Estimated Parameters: the Expected Return Vector and Covariance Matrix (Applied study on the Damascus Stock Exchange”, مجلة الجامعة, vol. 5, no. 5, Sep. 2022, Accessed: Jun. 06, 2026. [Online]. Available: https://journal.hama-univ.edu.sy/huj/article/view/1164