THANDAPANI, E.; PIRAMANANTHAM, V. Oscillation criteria for second order nonlinear neutral dynamic equations on time scales. Tamkang Journal of Mathematics, [S. l.], v. 43, n. 1, p. 109–122, 2012. DOI: 10.5556/j.tkjm.43.2012.1130. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/1130. Acesso em: 6 jul. 2022.