DRAGOMIR, S.S. ON PECARIC’S INEQUALITY IN INNER PRODUCT SPACES. Matematichki Bilten, [S. l.], v. 27, n. 1, 2003. Disponível em: https://bilten.smm.org.mk/index.php/bilten/article/view/1681. Acesso em: 13 jun. 2026.