JAFFER I., M. A.; B., S. Note on oscillationa theorems for third order non-linear difference equations. Tamkang Journal of Mathematics, [S. l.], v. 43, n. 4, p. 491–498, 2012. DOI: 10.5556/j.tkjm.43.2012.760. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/760. Acesso em: 7 may. 2024.