@book{id_7238,
author = "Koecher, Max",
title = "Eine Äquivalenzrelation in Ringen",
year = "1968",
address = "München",
publisher = "Verl.d.Bayer.Akad.d.Wiss.",
series = "Sitzungsbericht der Bayerischen Akademie der Wissenschaften",
volume = "1967,6.",
url = "http://publikationen.badw.de/de/003384205",
}