@book{78873,
	author = {Klein, Felix,},
	title = {Vergleichende Betrachtungen über neuere geometrische Forschungen},
	publisher = {Project Gutenberg,},
	year = {2011},
	address = {Salt Lake City, UT :},
	note = {Release date is 2011-11-16},
	url = {https://www.gutenberg.org/ebooks/38033}
}