[1] D. D. Bainov and D. P. Mishev:
Oscillation Theory for Neutral Differential Equations with Delay. Adam Hilger, 1991.
MR 1147908
[2] M. Budincevic:
Oscillation of second order neutral nonlinear differential equations. Novi Sad J. Math. 27 (1997), 49–56.
MR 1660956 |
Zbl 1074.34500
[3] I. T. Kiguradze and T. A. Chanturia: Asymptotic Properties of Solutions of Nonautonomous Ordinary Differential Equations. Nauka, Moscow, 1991. (Russian)
[4] L. H. Erbe and Q. Kong:
Oscillation results for second order neutral differential equations. Funkc. Ekvacioj 35 (1992), 545–557.
MR 1199473
[5] Q. Chuanxi and G. Ladas:
Oscillations of higher order neutral differential equations with variable coefficients. Math. Nachr. 150 (1991), 15–24.
DOI 10.1002/mana.19911500103 |
MR 1109642
[6] S. R. Gracem and B. S. Lalli:
Oscillation and asymptotic behavior of certain second order neutral differential equations. Radovi Mat. 5 (1989), 121–126.
MR 1012728
[7] M. K. Grammatikopoulos, G. Ladas and A. Meimaridou:
Oscillation and asymptotic behavior of higher order neutral equations with variable coefficients. Chinese Ann. Math. 9B (1988), 322–338.
MR 0968469
[8] K. Gopalsamy, B. S. Lalli and B. G. Zhang:
Oscillation of odd order neutral differential equations. Czechoslovak Math. J. 42(117) (1992), 313–323.
MR 1179502
[9] I. Győri and G. Ladas:
Theory of Delay Differential Equations with Applications. Clarendon Press, Oxford, 1991.
MR 1168471
[11] Š. Kulcsár: On the asymptotic behavior of the second order neutral differential equations. Publ. Math. Debrecen 57 (2000), 153–161.
[12] N. Parhi and P. K. Mohanty: Oscillation of neutral differential equations of higher order. Bull. Inst. Math. Sinica 24 (1996), 139–150.
[13] M. Růžičková and E. Špániková: Comparison theorems for differential equations of neutral type. Fasc. Math. (1998), 141–148.