@book{57286,
	author = {Morgenstern, Christian,},
	title = {Stufen: Eine Entwickelung in Aphorismen und Tagebuch-Notizen},
	publisher = {Project Gutenberg,},
	year = {2005},
	address = {Salt Lake City, UT :},
	note = {Release date is 2005-05-25},
	url = {https://www.gutenberg.org/ebooks/15898}
}