@book{334,
	author = {Porter, Michael E. and Economic development.},
	title = {The competitive advantage of nations},
	publisher = {Palgrave Macmillan, },
	year = {c1998},
	series = {Macmillan business},
	address = {Basingstoke, Hampshire :},
	note = {Includes index.},
	url = {http://digitale-objekte.hbz-nrw.de/storage2/2015/04/20/file_169/6123920.pdf}
}