@book{236471,
	author = {Norman, Eric S. and Brotherton, Shelly A. and ebrary, Inc.},
	title = {Work breakdown structures},
	publisher = {John Wiley & Sons,},
	year = {c2008.},
	address = {Hoboken, N.J. :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10518778}
}