ABOUT A CLASS OF 2D MATRIX OF DIFFERENTIAL EQUATIONS. Balkan Journal of Applied Mathematics and Informatics, [S. l.], v. 6, n. 2, p. 135–146, 2023. Disponível em: https://js.ugd.edu.mk/index.php/bjami/article/view/5930. Acesso em: 3 okt. 2025.