@Book{Ledebour1846,
author  = "Ledebour, Carl Friedrich von",
title   = "Über Pugionium cornutum. Gaertn.",
year    = "1846",
address = "München",
series  = "Abhandlungen",
volume  = "4,9",
url     = "https://publikationen.badw.de/de/003082802",
}