@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/de/003071409", }