@book{51666,
	author = {Eder, Josef Maria,},
	title = {Die photographischen Objektive,},
	publisher = {W. Knapp,},
	year = {1911.},
	series = {Ausfürliches Handbuch der Photographie, 1. Bd., 4 T.},
	address = {Halle a.S.,},
	edition = {3. gänzlich umgearb. und verm. Aufl.}
}