@book{6044,
	author = {Bekir, Esmat. and ebrary, Inc.},
	title = {Introduction to modern navigation systems},
	publisher = {World Scientific,},
	year = {c2007.},
	address = {New Jersey :},
	note = {Includes bibliographical references and index.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10698764}
}