@book{89759,
	author = {Helfferich, Karl,},
	title = {Der Weltkrieg, II. Band :},
	publisher = {Project Gutenberg,},
	year = {2015},
	address = {Salt Lake City, UT :},
	note = {Release date is 2015-05-10},
	url = {https://www.gutenberg.org/ebooks/48921}
}