@book{224279,
	author = {Greenberg, Joel S. and ebrary, Inc.},
	title = {Space economics},
	publisher = {American Institute of Aeronautics and Astronautics,},
	year = {1992.},
	series = {Progress in astronautics and aeronautics,},
	address = {Washington, D.C. :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10516707}
}