Frequent oscillation of a class of partial difference equations.
A note on the global attractivity of a discrete model of Nicholson's blowflies.
Classification of solutions of delay difference equations.
Necessary and sufficient conditions for oscillations of linear delay partial difference equations.
Oscillations of certain delay integro-differential equations.
Oscillation and non-oscillation of some neutral differential equations of odd order.
Some remarks on second order linear difference equations.
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