@book {9783170232259, 
	title = "Geschichte des Herzogtums Schwaben",
	author = "Zettler, Alfons",
	isbn = "9783170232259",
	year = "2003",
	edition = "1",
	keywords = "Mittelalter, Mittelalterliche Geschichte, Schwaben",
	url = "http://www.content-select.com/index.php?id=bib_view&ean=9783170232259",
	url = "https://content-select.com/de/portal/media/view/517a5353-f4f0-4d3d-bc66-1b855dbbeaba",
	publisher = "W. Kohlhammer Verlag",
	language = "ger",
}