Discrete Dynamics in Nature and Society
Volume 2010 (2010), Article ID 405121, 4 pages
doi:10.1155/2010/405121
  
     
          
          On two systems of difference equations
          
            Bratislav Iričanin1
             and Stevo Stević2
          
          1Faculty of Electrical Engineering, University of Belgrade, Bulevar Kralja Aleksandra 73, 11120 Belgrade, Serbia
          2Mathematical Institute, Serbian Academy of Sciences, Knez Mihailova 36/III, 11000 Beograd, Serbia
          
          Abstract
We give very short and elegant proofs of the main results in the work of Yalcinkaya et al. (2008).