@Book{Aumann1976,
author  = "Aumann, Georg",
title   = "Strahl-Partitionen in Gruppen und Geometrie",
year    = "1976",
address = "München",
series  = "Sitzungsberichte",
volume  = "1975,1",
url     = "https://publikationen.badw.de/de/003384235",
}