Open access
Submitted: March 23rd, 2012 Published: October 2nd, 2012
DOI: 10.5772/51180
From the Edited Volume
Edited by Francisco Beltran-Carbajal
Submitted: March 23rd, 2012 Published: October 2nd, 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.