@book{51159,
	author = {Perthes, Volker},
	title = {Geheime Gärten},
	publisher = {BpB},
	year = {2006},
	series = {Schriftenreihe der Bundeszentrale für politische Bildung },
	address = {Bonn},
	note = {Literaturverz. S. 487 - 500}
}