@book{104666,
	author = {Brown, J. H.},
	title = {Spectropia; or, Surprising Spectral Illusions :},
	publisher = {Project Gutenberg,},
	year = {2020},
	address = {Salt Lake City, UT :},
	note = {Wikipedia page about this book: https://en.wikipedia.org/wiki/Spectropia},
	url = {https://www.gutenberg.org/ebooks/63842}
}