“Tensorial and Hadamard Product Inequalities for Functions of Selfadjoint Operators in Hilbert Spaces in Terms of Kantorovich Ratio”. Extracta Mathematicae 38, no. 2 (December 1, 2023): 237–250. Accessed May 20, 2024. https://revista-em.unex.es/index.php/EM/article/view/2605-5686.38.2.237.