@book{68441,
	author = {Descartes, René, and Fischer, Ludwig},
	title = {Betrachtungen über die Grundlagen der Philosophie},
	publisher = {Project Gutenberg,},
	year = {2008},
	address = {Salt Lake City, UT :},
	note = {Release date is 2008-12-14},
	url = {https://www.gutenberg.org/ebooks/27532}
}