TIAN, Y.; GI, W. Some second-order three-point boundary value problem for discrete equations on the half-line. Tamkang Journal of Mathematics, [S. l.], v. 39, n. 4, p. 271–290, 2008. DOI: 10.5556/j.tkjm.39.2008.1. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/1. Acesso em: 22 jul. 2024.