Open access
Submitted: 25 November 2011 Published: 27 September 2012
DOI: 10.5772/48394
From the Edited Volume
Edited by Sohail Iqbal, Nora Boumella and Juan Carlos Figueroa Garcia
Submitted: 25 November 2011 Published: 27 September 2012
© 2012 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution 3.0 License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.