@Book{Wagner1851,
author  = "Wagner, Johann Andreas",
title   = "Beiträge zur Kenntniss der in den lithographischen Schiefern abgelagerten urweltlichen Fische",
year    = "1851",
address = "München",
series  = "Abhandlungen",
volume  = "Bd. 6, Abth. 1 = [1]",
url     = "https://publikationen.badw.de/de/003082822",
}