V. MUTHULAKSHMI; R. MANJURAM. Interval criteria for oscillation of second-order impulsive delay differential equation with mixed nonlinearities. Malaya Journal of Matematik, India, v. 4, n. 03, p. 404–420, 2016. DOI: 10.26637/mjm403/008. Disponível em: https://www.malayajournal.org/index.php/mjm/article/view/549. Acesso em: 23 nov. 2024.