А.Sh. Shaldanbayev; A.B. IMANBAYEVA; A.ZH. BEISEBAYEVA; А.А. Shaldanbayeva. ON THE SQUARE ROOT OF THE OPERATOR OF STURM-LIOUVILLE FOURTH-ORDER. Известия НАН РК. Серия физико-математическая, [S. l.], n. 3, p. 85–96, 2019. Disponível em: https://journals.nauka-nanrk.kz/physics-mathematics/article/view/1637. Acesso em: 18 июн. 2024.