@book { CasestudyDeutscheBankAGGroup,
    title = "Case study: Deutsche Bank AG Group",
    author = "Andre {Lampel}",
    year = "2003",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783638227780",
    url = "https://www.hausarbeiten.de/document/18424"
}