SPACE OF SOLUTIONS OF LINEAR DIFFERENTIAL EQUATION OF SECOND ORDER AS 2-NORMED SPACE. Balkan Journal of Applied Mathematics and Informatics, [S. l.], v. 4, n. 2, p. 83–90, 2021. Disponível em: https://js.ugd.edu.mk/index.php/bjami/article/view/4272. Acesso em: 3 oct. 2025.