ANEVSKA, Katerina; MALČESKI, Risto. REMARK ABOUT CHARACTERIZATION OF 2-INNER PRODUCT. Matematichki Bilten, [S. l.], v. 40, n. 3, p. 29–36, 2016. DOI: 10.37560/matbil16300029a. Disponível em: https://bilten.smm.org.mk/index.php/bilten/article/view/1834. Acesso em: 14 aug. 2026.