@Book{Nöbeling1987,
author  = "Nöbeling, Georg",
title   = "Über einen Satz von Möbius-Hjelmslev",
year    = "1987",
address = "München",
series  = "Sitzungsberichte",
volume  = "1986,3",
url     = "https://publikationen.badw.de/en/000677193",
}