@book{49807,
	author = {Mittag-Leffler, Magnus Gustaf,},
	title = {Niels Henrik Abel},
	publisher = {Project Gutenberg,},
	year = {2005},
	address = {Salt Lake City, UT :},
	note = {Release date is 2005-04-01},
	url = {https://www.gutenberg.org/ebooks/7818}
}