Open access
Submitted: 09 January 2012 Published: 06 March 2013
DOI: 10.5772/55253
From the Edited Volume
Edited by Fausto Pedro García Márquez and Benjamin Lev
Submitted: 09 January 2012 Published: 06 March 2013
© 2013 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.