@Book{Harless1850,
author  = "Harless, Emil",
title   = "Ueber den Zahnbau von Myliobates und dem verwandten Rochen Trikeras",
year    = "1850",
address = "München",
series  = "Abhandlungen",
volume  = "Bd. 5, Abth. 3 = [13]",
url     = "https://publikationen.badw.de/de/003082818",
}