@book { NativeAdvertising,
    title = "Native Advertising",
    subtitle = "Mit Fingerspitzengefühl zum digitalen Werbeerfolg",
    author = "Christina {Hollstein}",
    year = "2017",
    publisher = "BACHELOR + MASTER PUBLISHING",
    address = "Hamburg, Deutschland",
    url = "https://m.bachelor-master-publishing.de/document/352810"
}