@book{223096,
	author = {Knauer, U., and ebrary, Inc.},
	title = {Algebraic graph theory},
	publisher = {De Gruyter,},
	year = {c2011.},
	series = {De Gruyter studies in mathematics ;},
	address = {Berlin ;},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10512209}
}