On oscillations of solutions and their derivatives in a nonlinear third-order differential equation.
(English).Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica,
vol. 27
(1988),
issue 1,
pp. 185-200
[1] Staněk S.: Bounds for solutions of a nonlinear differential equations of the third order. Acta Univ. Palackianae Olomucensis, Fac. rerum nat., Math. XXVI, Vol. 88, 1987. MR 1033330