@book{181081,
	author = {Hersh, William R. and ebrary, Inc.},
	title = {Information retrieval},
	publisher = {Springer,},
	year = {c2003.},
	series = {Health informatics},
	address = {New York :},
	edition = {2nd ed.},
	note = {First ed. has subtitle: a health care perspective.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10047827}
}