@book{81784,
	author = {Roo, Gert de. and ebrary, Inc.},
	title = {Complexity and planning},
	publisher = {Ashgate,},
	year = {c2012.},
	series = {New directions in planning theory},
	address = {Burlington, Vt. :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10568759}
}