@book{224340,
	author = {Parkinson, Bradford W. and American Institute of Aeronautics and Astronautics.},
	title = {The global positioning system},
	publisher = {American Institute of Aeronautics and Astronautics,},
	year = {1996.},
	series = {Progress in astronautics and aeronautics ;},
	address = {Washington, D.C. :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10516768}
}