THANDAPANI, E.; PADMAVATHI, S.; PINELAS, S. Oscillation Criteria For Even Order Nonlinear Neutral Differential Equations With Mixed Arguments. JOURNAL OF ADVANCES IN MATHEMATICS, [S. l.], v. 5, n. 1, p. 575–589, 2013. DOI: 10.24297/jam.v5i1.3669. Disponível em: https://rajpub.com/index.php/jam/article/view/3669. Acesso em: 13 may. 2024.