Open access
Submitted: March 7th, 2012 Published: March 21st, 2012
DOI: 10.5772/48897
From the Monograph
Authored by M. Zubiaga, G. Abad, J. A. Barrena, S. Aurtenetxea and A. Carcar
Submitted: March 7th, 2012 Published: March 21st, 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.