DRAGOMIR, Sever S. A note on the Wang-Zhang and Schwarz inequalities. Studia Universitatis Babeș-Bolyai Mathematica, [S. l.], v. 63, n. 3, p. 395–399, 2018. DOI: 10.24193/subbmath.2018.3.10. Disponível em: https://studia.reviste.ubbcluj.ro/index.php/subbmathematica/article/view/2129. Acesso em: 5 feb. 2025.