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://trrest.vot.pl/ojsus/index.php/AMSIL/article/view/15788. Acesso em: 7 may. 2025.