BAIZHANOVA, M.T.; TURMETOV, B.Kh. On solvability of the initial-boundary value problems for a nonlocal hyperbolic equation with periodic boundary conditions. Bulletin of the Karaganda University. Mathematics Series, [S. l.], v. 119, n. 3, p. 46–56, 2025. DOI: 10.31489/2025m3/46-56. Disponível em: https://mts.buketov.edu.kz/index.php/mathematics-vestnik/article/view/873. Acesso em: 5 oct. 2025.