@book{100319,
	author = {Dannemann, Friedrich,},
	title = {Die Naturwissenschaften in ihrer Entwicklung und in ihrem Zusammenhange, IV. Band :},
	publisher = {Project Gutenberg,},
	year = {2019},
	address = {Salt Lake City, UT :},
	note = {Release date is 2019-05-13},
	url = {https://www.gutenberg.org/ebooks/59493}
}