@book { Rckblende,
    title = "Rückblende",
    subtitle = "Mein Leben, mein Schicksal, meine Epoche - Die Memoiren von Nadeschda A. Joffe",
    author = "Nadeschda A. {Joffe} and Iva {Srazil}",
    year = "2020",
    publisher = "MEHRING Verlag",
    address = "Essen, Deutschland",
    url = "https://mehring.openpublishing.com/document/917501"
}