@book { DueDiligence,
    title = "Due Diligence",
    subtitle = "Schweigepflicht des Vorstands der AG",
    author = "Heike {Neurohr-Kleer}",
    year = "2002",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832453282",
    url = "https://m.diplom.de/document/220892"
}