Eigenvalue Intervals for Iterative Systems of Nonlinear Three-point Boundary value problems on Time Scales. Nonlinear Studies, [S. l.], v. 22, n. 3, 2015. Disponível em: https://www.nonlinearstudies.com/index.php/nonlinear/article/view/815. Acesso em: 13 jan. 2026.