Fonte:
http://dre.pt/pdf1sdip/2009/03/05600/0177201772.pdf
http://dre.pt/pdf1sdip/2009/03/05600/0177301774.pdf
http://dre.pt/pdf1sdip/2009/03/05600/0177701785.pdf
http://dre.pt/pdf1sdip/2009/03/05600/0178501798.pdf
