@Book{Keinz1890,
author  = "Keinz, Friedrich",
title   = "Ueber Aventins Tagebuch. (Aventins Hauskalender)",
year    = "1890",
address = "München",
series  = "Sitzungsberichte",
volume  = "1890,2,8",
url     = "https://publikationen.badw.de/de/007457804",
}