@book { 6808,
	title = {Burgen und Schlösser an der Donau},
	publisher = {Birken-Verl.},
	year = {1977},
	series = {},
	note = {Ill., graph. Darst., Kt.[br]Literaturverz. S. [209][br]},
	author = {Büttner, , Rudolf}
}