BOUNDARY VALUE PROBLEMS FOR FOURTH-ORDER EQUATIONS DEGENERATING ON THE WHOLE BOUNDARY OF THE DOMAIN. Scientific journal of the Fergana State University, [S. l.], v. 28, n. 4, p. 39, 2022. Disponível em: https://journal.fdu.uz/index.php/sjfsu/article/view/2090. Acesso em: 9 jan. 2026.