@book { DerDeutscheCorporateGovernanceKodex,
    title = "Der Deutsche Corporate Governance Kodex",
    author = "Alicja {Krum}",
    year = "2002",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832460839",
    url = "https://m.diplom.de/document/221550"
}