@book { DieSchwertkmpferdesMarsScienceFictionFantasy,
    title = "Die Schwertkämpfer des Mars: Science Fiction Fantasy",
    author = "Otis A. {Kline}",
    year = "2023",
    publisher = "Uksak E-Books",
    address = "Lengerich, Deutschland",
    url = "https://uksakebooks.grin.com/document/1351494"
}