@book { RaumschiffRubikon27WeltderWelten,
    title = "Raumschiff Rubikon 27 Welt der Welten",
    author = "Oliver {Fröhlich}",
    year = "2018",
    publisher = "Uksak E-Books",
    address = "Lengerich, Deutschland",
    url = "https://uksakebooks.grin.com/document/453165"
}