@book {9783879075973, 
	title = "Online-Karten im Fokus",
	editor = "Hennig, Sabine",
	isbn = "9783879075973",
	year = "2015",
	edition = "1",
	keywords = "Karten, Geodaten, Geoinformation, Digitale Karten, Internetkarten, Online-Karten, Online-Kartographie",
	url = "http://www.content-select.com/index.php?id=bib_view&ean=9783879075973",
	url = "https://content-select.com/de/portal/media/view/5720a7c4-93fc-4156-828a-435ab0dd2d03",
	publisher = "Wichmann Verlag",
	language = "ger",
}