Affiliation: | 1.Federal Institute of Education, Science and Technology of Southern Minas Gerais – IFSULDEMINAS, Avenida Vicente Sim?es, 1.111. Nova Pouso Alegre, Pouso Alegre, MG CEP 37553-465, Brazil ;2.Federal University of Itajubá – UNIFEI, Av. BPS, 1303, Bairro Pinheirinho, Itajubá, MG, Caixa Postal 50 CEP 37500 903, Brazil ; |