Fonte:
http://www.dre.pt/pdf1sdip/2008/08/15100/0529405295.PDF
http://www.dre.pt/pdf1sdip/2008/08/15400/0540605406.PDF
http://www.dre.pt/pdf1sdip/2008/08/15400/0540605407.PDF
http://www.dre.pt/pdf2sdip/2008/08/154000000/3549435495.pdf