TEAM, S. On the Difference Equations: E. M. Elsayed. Thai Journal of Mathematics, [S. l.], v. 7, n. 1, p. 1–8, 2009. Disponível em: https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/141. Acesso em: 27 apr. 2024.