L. Dimov, “ABOUT THE FORM OF THE SOLUTION OF A THIRD-DEGREE EQUATION WITH FUNCTIONAL COEFFICIENTS”, Mat. Bilt., vol. 32, no. 1, pp. 71–74, Jan. 2008, Accessed: Nov. 03, 2026. Available: https://bilten.smm.org.mk/index.php/bilten/article/view/1744