R. ARUL; M. MANI. On the oscillation of third order quasilinear delay differential equations with Maxima. Malaya Journal of Matematik, India, v. 2, n. 04, p. 489–496, 2014. DOI: 10.26637/mjm204/016. Disponível em: https://www.malayajournal.org/index.php/mjm/article/view/441. Acesso em: 16 jul. 2024.