%0 Journal Article %T The Form of the Solutions and Periodicity of Some Systems of Difference Equations %A M. Mansour %A M. M. El-Dessoky %A E. M. Elsayed %J Discrete Dynamics in Nature and Society %D 2012 %I Hindawi Publishing Corporation %R 10.1155/2012/406821 %X This paper is devoted to get the form of the solutions and the periodic nature of the following systems of rational difference equations %U http://www.hindawi.com/journals/ddns/2012/406821/