@book{101650,
	author = {Knackfuss, H.},
	title = {Raffael},
	publisher = {Project Gutenberg,},
	year = {2019},
	series = {Künstler-Monographien: I},
	address = {Salt Lake City, UT :},
	note = {Release date is 2019-12-01},
	url = {https://www.gutenberg.org/ebooks/60824}
}