@book{226980,
	author = {Costa, Dora L. and ebrary, Inc.},
	title = {Health and labor force participation over the life cycle},
	publisher = {University of Chicago Press,},
	year = {c2003.},
	series = {National Bureau of Economic Research conference report},
	address = {Chicago :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10209978}
}