@Book{Maurer1900,
author  = "Maurer, Ludwig",
title   = "Ueber die Endlichkeit der Invariantensysteme",
year    = "1900",
address = "München",
series  = "Sitzungsberichte",
volume  = "1899,7",
url     = "https://publikationen.badw.de/de/003391847",
}