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Discrete Dynamics in Nature and Society

Volume 2012 (2012), Article ID 406821, 17 pages

http://dx.doi.org/10.1155/2012/406821

Research Article

## The Form of the Solutions and Periodicity of Some Systems of Difference Equations

^{1}Mathematics Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia^{2}Department of Mathematics, Faculty of Science, Mansoura University, Mansoura 35516, Egypt

Received 20 May 2012; Accepted 6 July 2012

Academic Editor: Garyfalos Papaschinopoulos

Copyright © 2012 M. Mansour et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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