@Book{Kupffer1895,
author  = "Kupffer, Carl",
title   = "Ueber Monorhinie und Amphirhinie",
year    = "1895",
address = "München",
series  = "Sitzungsberichte",
volume  = "1894,3",
url     = "https://publikationen.badw.de/en/003392705",
}