@Book{Steinheil1844,
author  = "Steinheil, Carl August",
title   = "Copie des Mètre der Archive",
year    = "1844",
address = "München",
series  = "Abhandlungen",
volume  = "Bd. 4, Abth. 1 = [4]",
url     = "https://publikationen.badw.de/de/003082800",
}