@book{35295,
	author = {Helmholtz, Hermann von, and Southall, James P. C.},
	title = {Helmholtz's treatise on physiological optics :},
	publisher = {Dover Publications,},
	year = {1962.},
	address = {New York :},
	note = {Translation of Handbuch der physiologischen Optik, with additions made in 1924 by Southall.}
}