@Book{FIL20140014811, title = "Pedro Nunes e o Libro de Algebra", author = "Leit\~{a}o, Henrique, 1964-. Pedro Nunes e o Libro de Algebra. 2010. Portugu\'{e}s", URL = "http://www.larramendi.es/es/consulta/registro.do?id=14916", year = "2011", }