@book{id_11843,
author = "Gümbel, Carl Wilhelm von",
title = "Beiträge zur Kenntniss der Organisation und systematischen Stellung von Receptaculites",
year = "1875",
address = "München",
publisher = "Verl. d. Akad.",
series = "Abhandlungen",
volume = "Bd. 12, Abth. 1 = [3]",
url = "http://publikationen.badw.de/de/003082968",
}