Open access peer-reviewed chapter
Submitted: September 18th, 2013 Reviewed: September 20th, 2013 Published: March 12th, 2014
DOI: 10.5772/57087
From the Edited Volume
Edited by Claudia do Rosario Vaz Morgado and Victor Paulo Pecanha Esteves
Submitted: September 18th, 2013 Reviewed: September 20th, 2013 Published: March 12th, 2014
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