@book { EineAnalysevorhandenerMicrojobbingAnwendungen,
    title = "Eine Analyse vorhandener Microjobbing-Anwendungen",
    author = "Florian {Krüger}",
    year = "2018",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    url = "https://m.diplom.de/document/388090"
}