@Book{Nägeli1861,
author  = "Nägeli, Carl",
title   = "Die Siebröhren von Cucurbita",
year    = "1861",
address = "München",
series  = "Sitzungsberichte",
volume  = "1861,1,11",
url     = "https://publikationen.badw.de/de/003399725",
}