B. KAMARAJ; R. VASUKI. Oscillation criteria for nonlinear difference equations with superlinear neutral term. Malaya Journal of Matematik, India, v. 5, n. 03, p. 580–586, 2017. DOI: 10.26637/mjm503/014. Disponível em: https://www.malayajournal.org/index.php/mjm/article/view/623. Acesso em: 2 nov. 2024.