SULTANOVA YULDUZXON KAMOLDINOVNA. A boundary matter for a fifth-order private derivative differential equation with two double and one simple real characteristic. Eurasian Research Bulletin , [S. l.], v. 4, p. 45–47, 2022. Disponível em: https://geniusjournals.org/index.php/erb/article/view/365. Acesso em: 6 nov. 2024.