Ebrahim Alizadeh, and Ali Farokhinia. “Some Refinements of Numerical Radius Inequalities for Hilbert Space Operators”. Jordan Journal of Mathematics and Statistics 15, no. 1 (May 18, 2025): 55–63. Accessed February 2, 2026. https://jjms.yu.edu.jo/index.php/jjms/article/view/764.