ASHYRALYEV, A.; ASHYRALYYEV, A.; ABDALMOHAMMED, B. On the hyperbolic type differential equation with time involution. Bulletin of the Karaganda University. Mathematics Series, [S. l.], v. 109, n. 1, p. 38–47, 2023. DOI: 10.31489/2023m1/38-47. Disponível em: https://mts.buketov.edu.kz/index.php/mathematics-vestnik/article/view/551. Acesso em: 9 jul. 2025.