А.Sh. Shaldanbayev; A.B. IMANBAYEVA; A.ZH. BEISEBAYEVA; А.А. Shaldanbayeva. ON THE SQUARE ROOT OF THE OPERATOR OF STURM-LIOUVILLE FOURTH-ORDER. Academic Scientific Journal of Computer Science, [S. l.], n. 3, p. 85–96, 2019. Disponível em: http://89.250.84.46/physics-mathematics/article/view/1637. Acesso em: 15 дек. 2025.