S. Gegovska-Zajkova, “NUMERICAL SOLUTION OF STURM-LIOUVILLE PROBLEMS CONTAININGSPECTRAL PARAMETER IN BOUNDARY OR INTERFACE CONDITIONS”, Mat. Bilt., vol. 28, no. 1, pp. 101–112, Jan. 2004, Accessed: Aug. 14, 2026. [Online]. Available: https://bilten.smm.org.mk/index.php/bilten/article/view/1703