@book{216240,
	author = {Heine, Gunnar. and Sagkob, Holger. and ebrary, Inc.},
	title = {GPRS},
	publisher = {Artech House,},
	year = {c2003.},
	series = {Artech House mobile communications series},
	address = {Boston, MA :},
	edition = {2nd ed.},
	url = {http://site.ebrary.com/lib/strathmore/Doc?id=10081905}
}