@book{100577,
	author = {Höcker, Gustav, and Upton, George P.},
	title = {Arnold of Winkelried, the Hero of Sempach},
	publisher = {Project Gutenberg,},
	year = {2019},
	series = {Life Stories for Young People},
	address = {Salt Lake City, UT :},
	note = {Release date is 2019-06-13},
	url = {https://www.gutenberg.org/ebooks/59751}
}