@book{132091,
	author = {H�ak, Tom�a�s, and International Council for Science.},
	title = {Sustainability indicators},
	publisher = {Island Press,},
	year = {c2007.},
	series = {SCOPE series},
	address = {Washington, DC :},
	note = {"UNEP ; ICSU ; European Environment Agency ; IHDP."},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10222014}
}