@Book{Reber1891,
author  = "Reber, Franz von",
title   = "Der karolingische Palastbau. Die Vorbilder",
year    = "1891",
address = "München",
series  = "Abhandlungen",
volume  = "19,8",
url     = "https://publikationen.badw.de/en/003833953",
}