@Book{Spengel1874,
author  = "Spengel, Andreas",
title   = "Deutsche Unarten in der Aussprache des Lateinischen",
year    = "1874",
address = "München",
series  = "Sitzungsberichte",
volume  = "1874,2,8",
url     = "https://publikationen.badw.de/en/007458656",
}