@Book{Orff(1895),
author  = "Orff, Carl von",
title   = "Telegraphische Längenbestimmungen für die Königliche Sternwarte zu Bogenhausen",
year    = "(1895)",
address = "München",
series  = "Abhandlungen",
volume  = "Bd. 18, Abth. 3 = [5]",
url     = "https://publikationen.badw.de/de/003793417",
}