Jenaliyev M, Kassymbekova A. On the initial boundary problem for hyperbolic equations with exponential degeneration t^ 12/7. JMMCS [Internet]. 2024 Apr. 5 [cited 2024 Nov. 24];121(1):27-36. Available from: https://bm.kaznu.kz/index.php/kaznu/article/view/1377