MILIČIĆ, Pavle M. ON THE QUASI-INNER PRODUCT SPACES. Matematichki Bilten, [S. l.], v. 22, n. 1, p. 19–30, 1998. Disponível em: https://bilten.smm.org.mk/index.php/bilten/article/view/1585. Acesso em: 14 aug. 2026.