THANDAPANI, E.; PANDIAN, S.; BALASUBRAMANIAN, R. K. Oscillatory behavior of second order unstable type neutral difference equations. Tamkang Journal of Mathematics, [S. l.], v. 36, n. 1, p. 57-68, 2005. DOI: 10.5556/j.tkjm.36.2005.136. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/136. Acesso em: 24 may. 2022.