Open access peer-reviewed chapter
Submitted: April 25th, 2011 Reviewed: March 10th, 2012 Published: April 18th, 2012
DOI: 10.5772/47946
From the Edited Volume
Edited by Thomas Brzozowski
Submitted: April 25th, 2011 Reviewed: March 10th, 2012 Published: April 18th, 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.