PEČARIĆ, Josip E. ON SOME CLASSICAL INEQUALITIES IN UNITARY SPACES. Matematichki Bilten, [S. l.], v. 16, n. 1, p. 63–72, 1992. Disponível em: https://bilten.smm.org.mk/index.php/bilten/article/view/1491. Acesso em: 14 aug. 2026.