@book{93194,
	author = {Berger, Ludwig,},
	title = {Spielgeist: Eine Phantasie},
	publisher = {Project Gutenberg,},
	year = {2016},
	address = {Salt Lake City, UT :},
	note = {Release date is 2016-06-17},
	url = {https://www.gutenberg.org/ebooks/52360}
}