@Book{Vogel1870,
author  = "Vogel, August",
title   = "Einige Versuche über das Keimen der Samen",
year    = "1870",
address = "München",
series  = "Sitzungsberichte",
volume  = "1870,2,21",
url     = "https://publikationen.badw.de/en/003396491",
}