@book { AppsamSmartphoneMarktErfolgsundAnwendungsmglichkeiten,
    title = "Apps am Smartphone-Markt: Erfolgs- und Anwendungsmöglichkeiten",
    author = "Laura {Müller}",
    year = "2013",
    publisher = "BACHELOR + MASTER PUBLISHING",
    address = "Hamburg, Deutschland",
    url = "https://m.bachelor-master-publishing.de/document/296527"
}