@book{220756,
	author = {Burde, Gerhard, and Zieschang, Heiner. and ebrary, Inc.},
	title = {Knots},
	publisher = {Walter de Gruyter,},
	year = {2003.},
	series = {De Gruyter studies in mathematics ;},
	address = {Berlin ;},
	edition = {2nd rev. and extended ed.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10194866}
}