@book { RobotergegenAliensScienceFictionAbenteuerPaket,
    title = "Roboter gegen Aliens: Science Fiction Abenteuer Paket",
    author = "Alfred {Bekker}",
    year = "2020",
    publisher = "Uksak E-Books",
    address = "Lengerich, Deutschland",
    url = "https://uksakebooks.grin.com/document/905598"
}