@book{224737,
	author = {Helbo, Andr�e. and ebrary, Inc.},
	title = {Theory of performing arts},
	publisher = {Benjamins,},
	year = {1987.},
	series = {Critical theory ;},
	address = {Amsterdam ;},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10515887}
}