BOUNDARY PROBLEMS FOR A SIMPLE DIFFERENTIAL EQUATION OF THE SECOND ORDER LINEAR WITH UNKNOWN RIGHT SIDE. Scientific journal of the Fergana State University, [S. l.], n. 1, p. 140–142, 2023. Disponível em: https://journal.fdu.uz/index.php/sjfsu/article/view/346. Acesso em: 10 jan. 2026.