@book{55286,
	author = {Troutt, Marvin D. and Pang, W. K. and ebrary, Inc.},
	title = {Vertical density representation and its applications},
	publisher = {World Scientific,},
	year = {c2004.},
	address = {River Edge, NJ :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10082153}
}