@book{220748,
	author = {Pajitnov, Andrei V. and ebrary, Inc.},
	title = {Circle-valued Morse theory},
	publisher = {De Gruyter,},
	year = {c2006.},
	series = {De Gruyter studies in mathematics,},
	address = {Berlin ;},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10194856}
}