@Book{Kupffer1885,
author  = "Kupffer, Carl",
title   = "Primäre Metamerie des Neuralrohrs der Vertebraten",
year    = "1885",
address = "München",
series  = "Sitzungsberichte",
volume  = "1885,20",
url     = "https://publikationen.badw.de/de/003391705",
}