@book{175709,
	author = {Kreher, Ralf. and R赤enbusch, Torsten.},
	title = {UMTS signalling :},
	publisher = {John Wiley & Sons,},
	year = {2005.},
	address = {Chichester, West Sussex, England ;},
	url = {http://www.loc.gov/catdir/enhancements/fy0626/2005276533-b.html}
}