@book {9783806224504, 
	title = "Heinrich in Canossa gedemütigt!",
	author = "Schneider-Ferber, Karin",
	isbn = "9783806224504",
	year = "2012",
	edition = "1",
	keywords = "Kirche, Heinrich IV, Canossa, Papst Gregor VII, Kaiser",
	url = "http://www.content-select.com/index.php?id=bib_view&ean=9783806224504",
	url = "https://content-select.com/de/portal/media/view/54dc8f23-84f8-4415-bb3d-5187b0dd2d03",
	publisher = "WBG",
	language = "ger",
}