@Book{Brill1883,
author  = "Brill, Alexander von",
title   = "Zur Theorie der geodätischen Linie und des geodätischen Dreiecks",
year    = "1883",
address = "München",
series  = "Abhandlungen",
volume  = "Bd. 14, Abth. 2 = [7]",
url     = "https://publikationen.badw.de/en/003082996",
}