@book{91294,
	author = {Wolff, Hans},
	title = {Karte und Kroki},
	publisher = {Project Gutenberg,},
	year = {2015},
	address = {Salt Lake City, UT :},
	note = {Release date is 2015-11-14},
	url = {https://www.gutenberg.org/ebooks/50456}
}