KUJUMDŽIEVA-NIKOLOSKA, M. ITERATIVE FORMULAS FOR SOLVING LINEAR DIFFERENTIAL EQUATIONS OF I AND II ORDER. Matematichki Bilten, [S. l.], v. 16, n. 1, 1992. Disponível em: https://bilten.smm.org.mk/index.php/bilten/article/view/1504. Acesso em: 13 jun. 2026.