DRAGOMIR, Silvestru Sever. Gradient inequalities for an integral transform of positive operators in Hilbert spaces. Annales Mathematicae Silesianae, [S. l.], v. 37, n. 2, p. 248–265, 2023. Disponível em: https://journals.us.edu.pl/index.php/AMSIL/article/view/15788. Acesso em: 18 apr. 2025.