@book{97377,
	author = {Heckel, Karl,},
	title = {Nietzsche, sein Leben und seine Lehre},
	publisher = {Project Gutenberg,},
	year = {2018},
	address = {Salt Lake City, UT :},
	note = {Release date is 2018-02-11},
	url = {https://www.gutenberg.org/ebooks/56546}
}