@book{206513,
	author = {Schulzrinne, Henning.},
	title = {Internet protocol-based emergency services /},
	publisher = {Wiley,},
	year = {2014.},
	address = {Chichester, West Sussex :},
	url = {http://onlinelibrary.wiley.com/book/10.1002/9781119993858}
}