@book{56303,
	author = {Unknown},
	title = {Das Nibelungenlied},
	publisher = {Project Gutenberg,},
	year = {2005},
	address = {Salt Lake City, UT :},
	note = {Wikipedia page about this book: https://en.wikipedia.org/wiki/Nibelungenlied},
	url = {https://www.gutenberg.org/ebooks/14915}
}