@book {9783818610487, 
	title = "Der Winzer 1",
	author = "Müller, Edgar",
	isbn = "9783818610487",
	edition = "4",
	url = "http://www.content-select.com/index.php?id=bib_view&ean=9783818610487",
	url = "https://content-select.com/de/portal/media/view/5dce7db9-8434-455e-ae85-12fdb0dd2d03",
	publisher = "Verlag Eugen Ulmer",
	language = "ger",
}