1.
KujumdĹžieva-Nikoloska M, Mitevska J. TRIGONOMETRIC SOLUTIONS FOR SOME ORDINARY DIFERENTIAL EQUATIONS OF THE SECOND ORDER. Mat. Bilt. 2003;27(1):113-118. Accessed August 14, 2026. https://bilten.smm.org.mk/index.php/bilten/article/view/1670