@Book{Zeiss1956,
author  = "Zeiss, Arnold",
title   = "Hecticoceras und Reineckeia im Mittel- und Ober-Callovien von Blumberg (Südbaden)",
year    = "1956",
address = "München",
series  = "Abhandlungen",
volume  = "80",
url     = "https://publikationen.badw.de/en/003071409",
}