@book{239210,
	author = {De Neufville, Richard, and Scholtes, Stefan. and ebrary, Inc.},
	title = {Flexibility in engineering design},
	publisher = {MIT Press,},
	year = {c2011.},
	series = {Engineering systems},
	address = {Cambridge, Mass. :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10524447}
}