1.
Sabirzhanov M, Koshanov B, Shynybayeva N, Kozhobekova P. Some methods for solving boundary value problems for polyharmonic equations. M [Internet]. 2025 Mar. 29 [cited 2025 Jul. 9];117(1):143-54. Available from: https://mts.buketov.edu.kz/index.php/mathematics-vestnik/article/view/724