@book{102434,
	author = {Hák, Tomáš, and International Council for Science.},
	title = {Sustainability indicators :},
	publisher = {Island Press,},
	year = {2007.},
	series = {SCOPE series},
	address = {Washington, DC :},
	note = {"UNEP ; ICSU ; European Environment Agency ; IHDP."}
}