@Book{Wolf1900,
author  = "Wolf, Max",
title   = "Die Aussen-Nebel der Plejaden",
year    = "1900",
address = "München",
series  = "Abhandlungen",
volume  = "Bd. 20, Abth. 3 = [5]",
url     = "https://publikationen.badw.de/en/003071162",
}