Oscillation Theorems for Second Order Nonlinear Neutral Difference Equations
          Selvarangam, S.; Thandapani, E.; Pinelas, Sandra  
          
          Journal of Inequalities and Apllications, 2014 (2014), 417  
          http://dx.doi.org/10.1186/1029-242X-2014-417  
           
          This paper deals with the oscillation of second order neutral difference equations of the form (5). The oscillation of all solutions of this equation is established via comparison theorems. Examples are provided to illustrate the main results. 
 
   
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