DRAGOMIR, S. S. New Inequalities for the $p$-Angular Distance in Normed Spaces with Applications. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 67, n. 1, p. 19–31, 2015. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/1960. Acesso em: 6 dec. 2025.