@Book{Sachs1976,
author  = "Sachs, Hans",
title   = "Edlinger-Flächen in isotropen Räumen",
year    = "1976",
address = "München",
series  = "Sitzungsberichte",
volume  = "1975,5",
url     = "https://publikationen.badw.de/en/003384243",
}