Open access
Submitted: 18 October 2011 Published: 13 March 2013
DOI: 10.5772/55079
From the Edited Volume
Edited by Reiner Thomä, Reinhard H. Knöchel, Jürgen Sachs, Ingolf Willms and Thomas Zwick
Submitted: 18 October 2011 Published: 13 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.