@Book{Spengel1851,
author  = "Spengel, Leonhard",
title   = "Ueber die Rhetorik des Aristoteles",
year    = "1851",
address = "München",
series  = "Abhandlungen",
volume  = "6,9 : 2. Abth.",
url     = "https://publikationen.badw.de/de/003192815",
}