@book{2170,
	author = {Gardner, Martin.},
	title = {Knotted Doughnuts and Other Mathematical Entertainments},
	publisher = {W.H. Freeman,},
	year = {1986.},
	address = {[S.l.] :},
	edition = {1ST ed.},
	url = {http://10.10.170.122:8080/browse/book/6180}
}