@book{id_11451,
author = "Unger, Georg Friedrich",
title = "Der Gang des altrömischen Kalenders",
year = "1888",
address = "München",
publisher = "Akad. der Wiss.",
series = "Abhandlungen",
volume = "18,5",
url = "http://publikationen.badw.de/de/003186470",
}