@book{6540,
	author = {�O Math�una, Diarmuid. and ebrary, Inc.},
	title = {Integrable systems in celestial mechanics},
	publisher = {Birkh�auser ;},
	year = {c2008.},
	series = {Progress in mathematical physics ;},
	address = {Boston, Mass. :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10274687}
}