KUJUMDŽIEVA-NIKOLOSKA, Marija; MITEVSKA, Jordanka. TRIGONOMETRIC SOLUTIONS FOR SOME ORDINARY DIFERENTIAL EQUATIONS OF THE SECOND ORDER. Matematichki Bilten, [S. l.], v. 27, n. 1, p. 113–118, 2003. Disponível em: https://bilten.smm.org.mk/index.php/bilten/article/view/1670. Acesso em: 14 aug. 2026.