@book{id_12519,
author = "Steinheil, Carl August",
title = "Elemente der Helligkeits-Messungen am Sternenhimmel",
year = "1837",
address = "München",
publisher = "Akad. d. Wiss.",
series = "Abhandlungen",
volume = "2,1",
url = "http://publikationen.badw.de/de/003082744",
}