@Book{Schuster1911,
author  = "Schuster, Julius",
title   = "Monographie der fossilen Flora der Pithecanthropus-Schichten",
year    = "1911",
address = "München",
series  = "Abhandlungen",
volume  = "Bd. 25, Abhandlung 6",
url     = "https://publikationen.badw.de/en/003071235",
}