@Book{Schrank1824,
author  = "Schrank, Franz von Paula",
title   = "De plantis gnaphaloideis in genere cum descriptionibus quarundam Capensium",
year    = "1824",
address = "München",
series  = "Denkschriften",
volume  = "8,[6] = 5 : Classe der Mathematik und Naturwissenschaften",
url     = "https://publikationen.badw.de/de/003414338",
}