@book { DieEntscheidungsuntersttzungvonCashManagementSystemen,
    title = "Die Entscheidungsunterstützung von Cash-Management-Systemen",
    author = "Bernd {Jakob}",
    year = "2001",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832438920",
    url = "https://m.diplom.de/document/219536"
}