| [1] |
Atkinson, F. V., On second order non-linear oscillations, Pacific J. Math., 5, 643-647 (1955) · Zbl 0065.32001 |
| [2] |
Bellman, R., Stability Theory of Differential Equations, Izd. Inostr. Lit. (1954), Moscow · Zbl 0056.36501 |
| [3] |
Golwitzer, H. E., On nonlinear oscillations for a second order delay equation, J. Math. Anal. Appl., 26, 385-389 (1969) · Zbl 0169.11401 |
| [4] |
Isjumova, D. V., On condition of oscillation and non-oscillation of second order nonlinear differential equations, Differentsial’nye Uravneniya, 2, 1572-1585 (1966) |
| [5] |
Kiguradze, I. T., On oscillations of solutions of nonlinear ordinary differential equations, (Proceedings of the Fifth International Conference of Nonlinear Oscillations, V. 1 (1970)), 293-298, Kiev · Zbl 0241.34041 |
| [6] |
Mishkis, A. D., Linear Delay Differential Equations, Gostekhizdat (1951), Moscow-Leningrad · Zbl 0043.30904 |
| [7] |
Norkin, S. B., Second Order Delay Differential Equations, Nauka (1965), Moscow · Zbl 0219.34051 |
| [8] |
Odarich, O. N.; Shevelo, V. N., Criteria of oscillation (non-oscillation) of solutions of the nonlinear second order differential equations with time lag, (Proceedings of the Fifth International Conference of Nonlinear Oscillations, V. 2 (1970)), 377-380, Kiev · Zbl 0268.34041 |
| [9] |
Staicos, V. A.; Petsoulas, A. G., Some oscillation criteria for second order nonlinear delay differential equations, J. Math. Anal. Appl., 30, 695-701 (1970) · Zbl 0193.06303 |
