Afshari, Mahmoud, and Hamid Karamikabir. “The Location Parameter Estimation of Spherically Distributions With Known Covariance Matrices”. Statistics, Optimization & Information Computing 8, no. 2 (February 20, 2020): 499-506. Accessed November 15, 2024. http://47.88.85.238/index.php/soic/article/view/710.