DABBAGHİ, A.; MASSAH, J.; ALİZADEH, M. Time scale, delta derivatives, nabla derivatives, self-adjoint boundary value problem, symetric Green’s function. International Journal of Natural and Engineering Sciences, [S. l.], v. 4, n. 3, p. 07–11, 2019. Disponível em: https://ijnes.org/index.php/ijnes/article/view/12. Acesso em: 14 nov. 2024.