1. Cecchi M., Došlá Z., Marini M.:
Comparison theorems for third order differential equations. Proceedings of Dynamic Systems and Applications, Vol. 2 (Atlanta, GA,1995).
MR 1419517
2. Greguš M., Graef J. R.:
On a certain nonautonomous nonlinear third order differential equation. Applicable Analysis, 1995, 58, no. 1-2, 175-185.
MR 1384596 |
Zbl 0880.34035
3. Greguš M., Graef J. R., Gera M.:
Oscillating nonlinear third order differential equations. Nonlinear Anal. Nonlinear Analysis. Theory, Methods & Applications., 1997, 28, No. 10, 1611-1622.
MR 1430504 |
Zbl 0871.34022
4. Greguš M., Gera M., Graef J. R.:
On oscillatory and asymptotic properties of solutions of certain nonlinear third order differential equations. Nonlinear Analysis. Theory, Methods & Applications. 1998, 32, No. 3, 417–425.
MR 1610594 |
Zbl 0945.34021
5. Kiguradze I. T.:
Oscillation tests for a class of ordinary differential equations. Diferen. Uravnenja, 28 No. 2, 1992, 180-190.
MR 1184921 |
Zbl 0788.34027
6. Kováčová M.:
Comparison Theorems for the n-th Order Differential Equations. Nonlinear Analysis Forum, 2000, vol. 5, 173–190.
MR 1798693