Dimov, Lazo A. “ON THE SOLUTION AND SOLVING OF LINEAR DIFFERENTIAL EQUATION OF THIRD ORDER WITH FUNCTIONAL COEFFICIENTS”. Matematichki Bilten 34, no. 1 (January 1, 2010): 47–51. Accessed August 14, 2026. https://bilten.smm.org.mk/index.php/bilten/article/view/1762.