@book{38067,
	author = {Greiner, Alfred. and Semmler, Willi.},
	title = {The global environment, natural resources, and economic growth /},
	publisher = {Oxford University Press,},
	year = {2008.},
	address = {Oxford :},
	url = {http://dx.doi.org/10.1093/acprof:oso/9780195328233.001.0001}
}