@book { InterneMarkenfhrunginDienstleistungsunternehmen,
    title = "Interne Markenführung in Dienstleistungsunternehmen",
    author = "Jessyka {Polensky}",
    year = "2006",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832499013",
    url = "https://m.diplom.de/document/225018"
}