@book{5578,
	author = {Crato,, Nuno, and Ramos,, Helena},
	title = {ˆA ‰matemática das coisas},
	publisher = {Gradiva,},
	year = {2008},
	series = {Temas de matemáica},
	address = {Lisboa},
	edition = {5<U+00AA> ed}
}