@Book{Prantl1885,
author  = "Prantl, Carl von",
title   = "Leonardo da Vinci in philosophischer Beziehung",
year    = "1885",
address = "München",
series  = "Sitzungsberichte",
volume  = "1885,1",
url     = "https://publikationen.badw.de/de/007459022",
}