@Book{Vogel[1833],
author  = "Vogel, Heinrich August",
title   = "Ueber den im Saflor befindlichen Farbestoff",
year    = "[1833]",
address = "",
series  = "Jahresberichte",
volume  = "3 (1831/33), Seite 76-77",
url     = "https://publikationen.badw.de/de/043714062",
}