@book{68981,
	author = {Smith, Ronnie W. and Hipp, D. Richard. and ebrary, Inc.},
	title = {Spoken natural language dialog systems},
	publisher = {Oxford University Press,},
	year = {1994.},
	address = {New York :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10086916}
}