DragomirSever S. “Reverse Jensen’s Type Trace Inequalities for Convex Functions of Selfadjoint Operators in Hilbert Spaces”. Annales Mathematicae Silesianae 30 (September 23, 2016): 39-62. Accessed May 18, 2024. https://www.journals.us.edu.pl/index.php/AMSIL/article/view/13955.