@Book{Gregorovius1885,
author  = "Gregorovius, Ferdinand",
title   = "Die Münzen Alberichs, des Fürsten und Senators der Römer. (A. 932-954)",
year    = "1885",
address = "München",
series  = "Sitzungsberichte",
volume  = "1885,2",
url     = "https://publikationen.badw.de/en/007459023",
}