FERREIRA, Vicente José Fernandes Costa; CAMARGO, José Rui. Project of an electro pneumatic circuit with regulation of the pressure for the execution proceeding of circular punctures in metallic plates with variation of thicknesses. Revista Ciências Exatas, [S. l.], v. 13, n. 1, 2008. Disponível em: https://periodicos.unitau.br/exatas/article/view/407. Acesso em: 7 set. 2025.