@book { ImperiumderErdeChronikderSternenkriegerExtra, title = "Imperium der Erde: Chronik der Sternenkrieger Extra", subtitle = "Sternenkrieger Extra 3", author = "Alfred {Bekker}", year = "2020", publisher = "Uksak E-Books", address = "Lengerich, Deutschland", url = "https://uksakebooks.grin.com/document/943025" }