On the boundedness of solutions of a certain fourth-order nonlinear differential equation.
(English).Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica,
vol. 27
(1988),
issue 1,
pp. 273-288
[1] Andres J.: Boundedness of solutions of the third order differential equation with oscillatory restoring and forcing terms. Czech. Math. Journal, V.36 111, No. 1, Praha 1986. MR 0822859 | Zbl 0608.34039
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