@book { SNAKE02HexenkesselUkraine,
    title = "SNAKE 02: Hexenkessel Ukraine",
    author = "G. G. {Grandt}",
    year = "2020",
    publisher = "Blitz-Verlag",
    address = ", Deutschland",
    url = "https://tolino.openpublishing.com/document/1021038"
}