@Book{Riezler1898,
author  = "Riezler, Sigmund von",
title   = "Die bayerische Politik im schmalkaldischen Kriege",
year    = "1898",
address = "München",
series  = "Abhandlungen",
volume  = "21,3",
url     = "https://publikationen.badw.de/de/003192630",
}