@book {9783791046082, 
	title = "Blockchain für Unternehmen",
	author = "Wittenberg, Stefan",
	isbn = "9783791046082",
	year = "2020",
	keywords = "Geschäftsmodell, IT, Wittenberg, Blockchain",
	url = "http://www.content-select.com/index.php?id=bib_view&ean=9783791046082",
	url = "https://content-select.com/de/portal/media/view/5e419698-b5b4-4d74-9529-561eb0dd2d03",
	publisher = "Schäffer-Poeschel",
	language = "ger",
}