BAINOV, D.; PETROV, V.; PROYTCHEVA, V. ASYMPTOTIC BEHAVIOUR OF SECOND ORDER NEUTRAL DIFFERENTIAL EQUATIONS WITH "MAXIMA". Tamkang Journal of Mathematics, [S. l.], v. 26, n. 3, p. 267–275, 1995. DOI: 10.5556/j.tkjm.26.1995.4406. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/4406. Acesso em: 1 may. 2024.