@book { DataMiningimImmobilienEBusiness,
    title = "Data-Mining im Immobilien E-Business",
    author = "Mirko {Prescha}",
    year = "2008",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783836624152",
    url = "https://m.diplom.de/document/226430"
}