On the oscillatory and asymptotic behavior of certain fourth order difference equations
Grace, S.R.; Agarwal, R.P.; Pinelas, Sandra
Functional Differential Equations, 17(1-2) (2010), 105-112
Some new criteria for the oscillatory and asymptotic behavior of solutions of the fourth order difference equation with the property that x (k) /k -> 0 as k -> oo are established.