M. K.-N. D. Dimitrovski, “NEW FORMULAR FOR APPROXIMATE SOLUTIONS OF THE LINEAR DIFFERENTIAL EQUATIONS OF THE II AND III ORDER”, Mat. Bilt., vol. 16, no. 1, Jan. 1992, Accessed: Jun. 13, 2026. [Online]. Available: https://bilten.smm.org.mk/index.php/bilten/article/view/1503