BAJŠANSKI, B.; BOJANIĆ, R. О ВРЕДНОСТИМА НЕКИХ КОНАЧНИХ СУМА. Matematichki Bilten, [S. l.], v. 4, n. 1, 1954. Disponível em: https://bilten.smm.org.mk/index.php/bilten/article/view/1185. Acesso em: 13 jun. 2026.