@book {9783962451813, 
	title = "Handbuch Marketing im ÖPNV",
	author = "Ackermann, Till",
	isbn = "9783962451813",
	edition = "1",
	keywords = "Marketing, ÖPNV, nahverkehr",
	url = "http://www.content-select.com/index.php?id=bib_view&ean=9783962451813",
	url = "https://content-select.com/de/portal/media/view/5af997a1-8708-4e51-b473-7b36b0dd2d03",
	publisher = "Global Rail Group",
	language = "ger",
}