Pdf da apresentacao: https://drive.google.com/file/d/0BwTDDbPPqb1zQ3NsY2FBbGNwcVk/view?usp=sharing Pdf do artigo: https://drive.google.com/file/d/0BwTDDbPPqb1zM1VuOElYaEdTQnc/view?usp=sharing