@Book{Voss1923,
author  = "Voss, Aurel",
title   = "Transformation des rechtwinkligen Koordinatensystems",
year    = "1923",
address = "München",
series  = "Sitzungsberichte",
volume  = "1922,25",
url     = "https://publikationen.badw.de/en/003399297",
}