@Book{Ammon1886,
author  = "Ammon, Ludwig von",
title   = "Ueber neue Exemplare von jurassischen Medusen",
year    = "1886",
address = "München",
series  = "Abhandlungen",
volume  = "Bd. 15, Abth. 1 = [2]",
url     = "https://publikationen.badw.de/de/003083010",
}