Dragomir, S.S. “Second Derivative Lipschitz Type Inequalities for an Integral Transform of Positive Operators in Hilbert Spaces”. Extracta Mathematicae 37, no. 2 (December 1, 2022): 261-282. Accessed April 1, 2023. https://publicaciones.unex.es/index.php/EM/article/view/2605-5686.37.2.261.