Dragomir, Silvestru Sever. “Gradient Inequalities for an Integral Transform of Positive Operators in Hilbert Spaces”. Annales Mathematicae Silesianae 37, no. 2 (July 26, 2023): 248–265. Accessed April 17, 2025. https://journals.us.edu.pl/index.php/AMSIL/article/view/15788.