@book{90771,
	author = {Mather, Frank Jewett,},
	title = {The Mentor: Two Early German Painters, Dürer and Holbein, Vol. 1, Num. 48, Serial No. 48},
	publisher = {Project Gutenberg,},
	year = {2015},
	address = {Salt Lake City, UT :},
	note = {Release date is 2015-09-10},
	url = {https://www.gutenberg.org/ebooks/49933}
}