"Furnas Dam" . . "Hydroelectric" . . "Furnas" . . . . . . . "1963" . . . . "1957" . "127.0" . "550.0" . . "hydroelectric plant of Furnas" . . . . . "Furnas dam" . . "1957" . "Furnas Dam" . "Furnas Lake" . . . . . .