1. Sufficient conditions for nonoscillation of n-th order differential equations;Chen;Atti Accad. Naz. Lincei Rend.,1976
2. A stability test for difference equations;Demidovič;Differentsial'nye Uravneniya,1969
3. Oscillation, nonoscillation, and growth of solutions of nonlinear functional differential equations of arbitrary order;Graef;J. Math. Anal. Appl.,1977
4. Growth and oscillatory behavior of solutions of a differential equation with a deviating argument;Graef;Funkcial. Ekvac.,1980
5. Sufficient conditions for the equation (a(t)x′) + h(t, x, x′) + q(t)f(x, x′) = e(t, x, x′) to be nonoscillatory;Graef;Funkcial. Ekvac.,1975