@book{118445,
	author = {Helmholtz, Hermann von, and Atkinson, E.},
	title = {Popular lectures on scientific subjects},
	publisher = {Project Gutenberg,},
	year = {2026},
	address = {Salt Lake City, UT :},
	note = {Release date is 2026-01-17},
	url = {https://archive.org/details/popularlectureso00helmrich/}
}