@book{88303,
	author = {Bohr, Niels,},
	title = {The Theory of Spectra and Atomic Constitution: Three Essays},
	publisher = {Project Gutenberg,},
	year = {2014},
	address = {Salt Lake City, UT :},
	note = {Release date is 2014-11-26},
	url = {https://www.gutenberg.org/ebooks/47464}
}