@Book{Maurer1875,
author  = "Maurer, Konrad von",
title   = "Die Entstehungszeit der älteren Frostuþingslög",
year    = "1875",
address = "München",
series  = "Abhandlungen",
volume  = "Abth. 3",
url     = "https://publikationen.badw.de/de/003197362",
}