BAINOV D, PETROV V, PROYTCHEVA V. ASYMPTOTIC BEHAVIOUR OF SECOND ORDER NEUTRAL DIFFERENTIAL EQUATIONS WITH "MAXIMA". Tamkang J. Math. [Internet]. 1995 Sep. 1 [cited 2024 May 1];26(3):267-75. Available from: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/4406