ALLAHVERDIEV, B. P.; TUNA, H. Discontinuous Matrix Sturm-Liouville Problems. Eurasian Mathematical Journal, [S. l.], v. 13, n. 3, p. 08–22, 2022. Disponível em: https://emj.enu.kz/index.php/main/article/view/260. Acesso em: 23 nov. 2024.