@book { DieSowjetmachtBd1,
    title = "Die Sowjetmacht Bd. 1",
    author = "Alexander {Rabinowitch} and Andrea {Rietmann}",
    year = "2022",
    publisher = "MEHRING Verlag",
    address = "Essen, Deutschland",
    url = "https://mehring.openpublishing.com/document/1285400"
}