Khudayberganov Y, Fayazov K. Conditional correctness of the initial-boundary value problem for the mixed type fourth-order partial differential equation with two degenerate lines. ACTA TTPU [Internet]. 2023 Sep. 27 [cited 2024 Dec. 22];13(2):9-15. Available from: https://acta.polito.uz/index.php/journal/article/view/196