„SPACE OF SOLUTIONS OF LINEAR DIFFERENTIAL EQUATION OF SECOND ORDER AS 2-NORMED SPACE“, bjami, Bd. 4, Nr. 2, S. 83–90, Dez. 2021, Zugegriffen: 3. Oktober 2025. [Online]. Verfügbar unter: https://js.ugd.edu.mk/index.php/bjami/article/view/4272